My perspective is to recognize that various forms of marriage have manifested in human history- such as lifelong monogamous marriage as well as polygamy (multiple wives with one husband) and polygyny (multiple husbands with one wife). Recognizing the variety, one can notice when each of the variations is deemed best by the majority of people within that culture or social group.
As for monogamy, it is a natural preference for reproduction within any species with such a long gestation period as humans. However, while lifelong monogamy may be a popular ideal, it is also widely recognized that many people (and not just men) may have a single long-term marriage, yet also have occasional other sexual partners, sometimes even of their own gender.
So, why is monogamy generally so popular among so many human cultures? Biologists know that there are many species that mate for life as well as many species in which adult organisms typically have multiple partners over their lifetime, or even within short periods of time, such as “mating season.” In some species, the female is only fertile once a year, but may be inseminated several times in a row by a variety of adult males who basically take their turns, sometimes with intense competition for who will be first (or next) and sometimes with the adult males having no interaction with each other at all.
As for humans in particular, pregnant women (and nursing mothers) tend to want to keep the fathers around- sometimes even for decades and even past the point of child-rearing. When economies boom, there is less relevance for a woman to having any particular man around to support the mother of his children. Sometimes governments will even subsidize single mothers. In human history, that may be a very rare social development. It is also rare that governments would act as debt collectors to pursue fathers for child support, though alimony laws probably originated from the same basic interest on the part of women (and the grandparents who may have supported the formation and enforcement of such legal policies).
With polygamy, that is when a man can support multiple wives, and apparently has been modestly popular in the last few thousand years of human history. With polygyny, that is when multiple men (usually who are very close genetically such as brothers) marry one woman as their shared wife for life. She has her choice of sexual partners and the husbands all support the children of the polygynous marriage without knowing which of the men are biologically uncle or actual father. In other societies, it is typical for a widow to be re-married by the eldest brother of her deceased husband. That is similar to polygyny.
In a way, when governments subsidize single mothers, that also resembles polygyny. Instead of “marrying the husband” or “marrying in to the whole family,” the citizens of some of the wealthiest nations in human history have basically been considered by default to be “married to the nation.” Some societies even subsidize not just single pregnant women or single mothers, but single people of any gender and even people with severe functional disabilities. Of course, that is exceedingly rare in human history, at least on the large scales common within the great empires of modern times.
Famous early leader of the Mormon Church, Joseph F. Smith, surrounded by several of his wives and dozens of his children- Image via Wikipedia
When there is a social trend away from reproduction and parenting (as when there is an economic contraction underway), then sexuality may be viewed more as recreational, which is when homosexuality, polyamory and serial monogamy tend to be most popular. Serial monogamy is also supported by government subsidies of mothers, as mothers have much less economic incentive to cater to “keeping” the father of their children around. Fathers have less incentive to “work it out and stay together” with the mothers of their children when there is a robust economy and government subsidy of single mothers.
Given that serial monogamy can involve a man (or a woman) reproducing with multiple spouses, serial monogamy is similar in many ways to both polygamy and polygyny. The distinction is that rather than stay in the same household with all of one’s wives or husbands, someone practicing serial monogamy will only reside with one spouse at a time, typically for several years or even decades in a row.
So, when is monogamy best (whether serial monogamy or lifelong monogamy)? It is functionally best whenever people who do that thrive most.
When is polyamory wrong? Polyamory is functionally “wrong” whenever people who do that thrive least.
Related articles
Sperm Sorting Function (http://www.ldsanarchy.com)
- Dueling Terms: Non-monogamy vs. Polyamory (littleaffairs.wordpress.com)
- Working group asks what cultural processes gave rise to monogamy (santafe.edu)
- Why Men Gave Up Polygamy (psychologytoday.com)
- Monogamous societies superior to polygamous societies | Gene Expression (blogs.discovermagazine.com)
- The Shrinking Universe – The more the merrier? (thehindu.com)
- From Muslim to Christian. From Polygamy to Monogamy. (sexologist-in-training.com)
- Libby Copeland: Polygamy is harmful to society (fullcomment.nationalpost.com)
- Monogamy reduces major social problems of polygamist cultures (eurekalert.org)
- Help me figure this (polyamory-related ethical question) out (ask.metafilter.com)
- Dammit, Gingrich (cubiksrube.wordpress.com)
- How polygamy works (holykaw.alltop.com)
- The Life of a Single Mother: Let Me Tell It… (luvmyaka.wordpress.com)
- Hrdy Notes Ch. 9 and Ch. 10 (offoxesandhedgehogs.wordpress.com)
- Rick Santorum: Single mothers are ‘breeding more criminals’ (dailykos.com)
- Ten Politically Incorrect So-Called Truths About Human Nature: 1 – 5 (wmbriggs.com)
- The Case of the Missing Polygamists (blogs.scientificamerican.com)
- “Social” Promiscuity the Only Acceptable Kind? (joybuehler.wordpress.com)
- Thoughts on Monogamy (lovesexandmarriage.wordpress.com)
- Questions (rhetcomppolydiss.wordpress.com)
- Terminological Hair-Splitting: “Polyamory” (aediculaantinoi.wordpress.com)
- Monogamy Taught by Holy Bible (paulmarcelrene.wordpress.com)
- Redefining Marriage in America: The Unopen Yet Flexible Marriage (psychologytoday.com)
- Why Men Gave Up Polygamy (my.psychologytoday.com)
- Schweitzer Rips Romneys on Polygamy (thedailybeast.com)
- Polygamy opposed in Malaysia study (channel4.com)
- Pair Bonding and Birds (slog.thestranger.com)
- My ONE AND Only…ha! (socyberty.com)
- Advantages and Disadvantages of Polygamy (socyberty.com)
- Making Love and Trouble (slate.com)
- Marriage rights, writ wrong (familyinequality.wordpress.com)
- American Islamists Seek Polygamy On Heels of Gay Marriage (genomega1.wordpress.com)
- Montana Governor: Romney’s Family Came ‘From A Polygamy Commune In Mexico’ (mediaite.com)
- Maybe Change Is Gonna Come? (kdaddy23.wordpress.com)
- American Islamists Seek Polygamy On Heels of Gay Marriage (thewesternexperience.com)
- Eliyahu Federman: Will Gay Marriage Lead to Polygamy, Incest, and Religious Meltdown? (huffingtonpost.com)
- I’m happy to explore polygamy with the Christian Institute | by @mjrobbins (guardian.co.uk)
- Non-Monogamy: A Surprising Perspective from a Muslim Matchmaking Service (bigthink.com)
- Newt Gingrich: Unethical Slut? (amoryjane.wordpress.com)
- Pop Culture Wednesday: What’s Monogamy Got to Do With It? (snarkyasiwant2b.wordpress.com)
- Whatever we do, it’s wrong – so let’s do it right (feministactioncambridge.wordpress.com)
- Amy Shiner: 3 Techniques for Surviving A Long-Distance Relationship (huffingtonpost.com)
- Polyamory (alternateeconomy.wordpress.com)
- Evolve, Damn It! (omgrey.wordpress.com)
- Polyamory, Thy Name Is Newt (bilerico.com)
- Modern lovers: The ‘sexual body warriors’ and pioneers transforming 21st-century relationships (independent.co.uk)
- Anapol on the Incidence of Polyamory (danedormio.wordpress.com)
- Elise Matthesen – “How to screw up relationships” (sophiansiren.wordpress.com)
- Defining polyamory: A Joburg production (ctrlaltsexblog.wordpress.com)
- The Tantra of Fear? (luckfawyers.wordpress.com)
- Taboo:Open relationships: the people making it work (guadalupejourney.wordpress.com)
- Neologisms (closeenoughtoread.wordpress.com)
- Polyamory (vibrationalland.wordpress.com)
- Poly in the City of Gold (ctrlaltsexblog.wordpress.com)
- On poly hypen insert whatever radically liberal free love term (veganproductjunkie.com)
- The Case Against Monogamy (from someone who actually believes in it) (eatcaketoo.wordpress.com)
- Why Is Monogamy Idealized When Most People Aren’t Monogamous? (alternet.org)
- Monogamy: cheating on what nature intended, or a simple choice? (theconversation.edu.au)
- Relationship States (kdaddy23.wordpress.com)
- The Perils of Polygamy (thepublicdiscourse.com)
- Are humans supposed to be monogamous? (evoanth.wordpress.com)
- Zuma’s Wives: How Humans Evolved a Link Between Inequality and Misogyny (theatlantic.com)
- Why Get Married? These Answers May Surprise You (psychologytoday.com)
- The Case Against Monogamy (by someone who actually believes in it) (eatcaketoo.wordpress.com)
- Same Time Next Year (cantstopmyself.wordpress.com)
- Entering a polygamous marriage. (seekingmeseekingyou.wordpress.com)
- Polygyny: ” I don’t dislike it nor do I look forward to being apart of that type of marriage!” (singleoverseas.wordpress.com)
- ‘Sister Wives’ Teenagers Don’t Plan to Live Polygamist Lifestyle (celebs.gather.com)
- Family That Inspired HBO’s ‘Big Love’ Brings New Book ‘Love Times Three’ – First-ever Memoir of Polygamy, Argues for the Acceptance of Plural Marriage (prweb.com)
- Acceptance & Mastery (seekingmeseekingyou.wordpress.com)
- Polygamist Who Is Married To Twin Sisters AND Their Cousin Appears on This Morning To Talk About His Lifestyle Choice (lukewilliamsgossip.wordpress.com)
- Polygamist Joe Darger who married twin sisters AND their cousin appears on This Morning to defend lifestyle (dailymail.co.uk)
- 1856 election sowed the seeds of Utah War, Y. scholar says ['56 GoP & 'twin relics of barbarism'] (gunnyg.wordpress.com)
- ‘Declaration Of Independence From Mormonism’; Faithful Leave Church Over Gay Rights, Science (towleroad.com)
- When a Man Loves a Woman – and a Woman, and a Woman, and a Woman By Chris Johnson (trinityspeaks.wordpress.com)
- Plural Dating (alykev.com)
- The Prophet Muhammads wives and his life in polygamy. (roshnii179.com)
- Warren Jeffs appeals conviction, threatens God’s wrath if he’s not freed (fox13now.com)
- Man Winning Most Married Moms Poised for White House (bloomberg.com)
- Review: Bringhurst and Foster, eds., “The Persistence of Polygamy” (bycommonconsent.com)
- The Book of Mitt (salon.com)
- Polygamy: Despite the best efforts of TLC, it still is not normal (trinityspeaks.wordpress.com)
- The Opera Company Of Philadelphia Presents Dark Sisters, An American Piece About Plural Marriage, On Stage June 8-17 (uwishunu.com)
- Redefining marriage to include same-sex couples would benefit nobody | John Sentamu (guardian.co.uk)
- No charges for ‘Sister Wives’ stars (lfpress.com)
- Entering a polygamous marriage. (seekingmeseekingyou.wordpress.com)
