Legalize Polygamy?

At The Dish, Jonathan Rausch thinks so:

I’m a gay marriage advocate and a polygamy opponent. And, yes, my positions make sense together. Polygamy is bad social policy for exactly the reason gay marriage is good social policy: everyone should have the opportunity to marry. Broad access to marriage important not only for individual wellbeing but for social stability. And, to oversimplify only a little, when one man gets two wives, some other man gets no wife. There’s no better path to inequality, social unrest, and authoritarian social structures than polygamy. Read the fine print here. [READ THE REST]