I think it would be wise to consider the possibility that maybe the legal institutions involved in marriage aren't up to scratch in terms of what humans can possibly do in terms of romantic and intimate relationships. It's better, in my opinion, to incorporate a method by which we can address these issues by more effective methods (as in don't ban something just because you don't like it. You ban it because it's destructive to the social order.).
The social and psychological aspects are still scarce since we live in a society built around western European Protestantism (heteronormative). So, whatever research that does exist is relatively new or limited in scope.
Of course. On my list of social causes worth spending time and energy on, polygamy ranks pretty low. If it's near and dear to your heart I wish you the best of luck.
If the white male religious nut case can provide and care for the woman and any resulting offspring and the woman are willing and knowing participants in the harem.
What's the problem? That you don't like it? That seems rather bigoted.
I could be wrong. I haven't done extensive research into this. If you want to convince me, show me the data.
If anything, it should be you that should go and create a research program analyzing the nature of poly relationships in humans and the underlying causes, not me. I merely pointed out the reality that our law should consider accommodation for those individuals as it does for others. All you seem to be bringing to the table is scare mongering that depends more on the tiniest of slivers of human society for the proposition that poly relationships should be illegal. Such a proposition is not tenable on it's face nor in its contents thus far. Or in simpler terms: please do your own research because I'm not here to convince you either way (but you seem damn sure to convince me that my poly friends are some evil bad fundies wanting to rape children).
Edit: sorry for the rudeness. I take things personally sometimes.
There are two large groups: one with a pretty 'dirty' record regarding abuse/child marriages and another with a clean record. So this could come down more to an environment/community issue than a polygamy issue where, in one community/environment, abuse and child marriages are largely the norm and the other it isn't.
Warren Jeffs' Fundamentalist Church of Jesus Christ of Latter-Day Saints && Apostolic United Brethren. The former having the bad record and the latter having the clean record. (&& being the separator to avoid confusion) The former is larger than the latter but the latter is the second-largest church that practices polygamy.
E:
The burden of proof is also on you to prove that polygamy leads to abuse/child abuse as you are the one making the claim. Given there's little/no data to support either side, you'll have to wait for more research. Which would likely involve legalizing the practice and conducting studies.
And yes, I read Moon is a Harsh Mistress too many times (I'm a sucker for that novel). :P