Elizabeth Abbott puts her foot down:
In our longing to ensure that everyone enjoys every possible right, we have been willing to stretch our imaginations, swallow our bile, and give polygamy a chance. That is no less than our values demand of us. But legalizing it is not ultimately in the same category as granting a pastor the right to express his loathing of homosexuality, or as legalizing gay marriage. … [Same-sex unions] brought people into an existing system of rights; [sanctioning polygamy] poses a significant threat to that system. And that’s probably our cue, as a liberal society, to hold our noses and draw the line.
The Dish 