Even though they actually did have Constitutional protection on the issue, the polygamists (well most of them anyway) submitted to the will of the nation on the issue. Like gays, who don't have Constitutional protection on the issue, should now. Or at least be content to leave it up to the states.
No one should give up their essential rights to the tyranny of majority. Just because some did in the past, you can't expect anyone doing it now.
"Fire cannot kill a dragon." -Daenerys Targaryen, Game of Thrones
