If polygamy were legal, would you do it?
No, you wouldn't.
Bet you that mormons would though.
But so what? As long as they're just having the religious ceremonies, I don't think it's the government's business either.
But now with the fall of the texas sodomy law "behavior" is protected and the "behavior" of multiple partners at the same time is protected. Better add those blanks to the marriage licenses, I want to make sure ALL my wives are eligble for widows and survivors benifits just in case.