No, the issue is hamstrung because the only people who bring it up in mainstream discourse are right-wingers who want to derail the discussion of gay marriage, to which liberals respond by declaring that no one would ever propose legalized polygamy because it's obviously insane and -- hey, you over there saying that you'd support polygamy, shut your trap. Can't you see that the crazy conservatives are totally right on this issue and by agreeing with them we aren't joining in their bigotry against Muslims, Mormons and hippie swingers?