Is polygamy next?

Jonathan Rauch has made these arguments many times before, but in case you missed it, he explains once again why the legalization of civil same-sex marriage doesn't open the legal door to polygamy.

Now, people who want to take issue with the theoretical and empirical literature on polygamy should feel free to do so. What they should not do is what Chief Justice Roberts and Fredrik deBoer do, which is to ignore the literature altogether. Blandly asserting that there's no good reason to oppose polygamy once gay couples can marry makes no more sense than saying there's no reason to oppose date rape or securities fraud once gay couples can marry. It doesn't follow, and it isn't true, and the intellectual laziness implicit in asserting it is epic.

To find out why Rauch thinks so, read his article here.