Polygamy should be legalized in the U.S. I don’t say this because I hope that the Church will return to it’s polygamy days. I’d rather it didn’t, but I don’t think I would be too bothered if they did (multiple sexual relationships, even if more often sequential rather than concurrent, are so common in popular culture, that I’ve been indoctrinated enough to just find it normal). No, I think it should be legalized because of what it seems to have become: instead of a lifestyle choice between adults, it has become a child abuse issue.
I do not know how many polygamist marriages occur between legal adults and how many occur between an adult and a minor, but it does seem to be a common issue. Though the marriage itself is illegal, governments and prosecutors are reticent to do anything about it. As long as the parties don’t make waves and just quietly go about their lives (i.e., unlike Tom Green), most people seem content to ignore it. As a result, children who are forced unwillingly into these marriages are stuck in that abusive situation without anyone doing anything to stop it.
If polygamy is legalized, then instead of turning a blind eye to the marriage itself, we can ignore the marriage as a norm, but be aware of and address the issue of keeping the relationship between consenting adults, as we currently do with monogamy. Adults who force children into those marriages can be prosecuted as child molesters, leaving the complex and difficult-to-address issue of polygamy out of it altogether.