Originally posted 9 Dec 19
Here is an excerpt:
During the time period from 2003 to 2017, support for polygamy in America rose from 7 percent to 17 percent, an even more dramatic shift from a statistical point of view. And it’s up to 18 percent in 2019.
Gallup noted that this “may simply be the result of the broader leftward shift on moral issues Americans have exhibited in recent years. Or, as conservative columnist Ross Douthat notes in his New York Times blog, ‘Polygamy is bobbing forward in social liberalism's wake ...’ To Douthat and other social conservatives, warming attitudes toward polygamy is a logical consequence of changing social norms -- that values underpinning social liberalism offer ‘no compelling grounds for limiting the number of people who might wish to marry.’”
Gallup also observed that, “It is certainly true that moral perceptions have significantly, fundamentally changed on a number of social issues or behaviors since 2001 -- most notably, gay/lesbian relations, having a baby outside of wedlock, sex between unmarried men and women, and divorce.”
Interestingly, Gallup also noted that there were social reasons that help to explain some of this larger leftward shift (including the rise in divorce and changes in laws; another obvious reason is that people have friends and family members who identify as gay or lesbian).
The info is here.