With impeccable logic, Slate points out that, if marriage is good for same-sex couples, it should be good for a polygamous ménage, too.

As the Slate article notes, when it comes to redefining marriage, we’re not done yet.

I feel slightly sorry for both TEC and the ACoC: they struggle mightily to keep up with the foibles and fashions of the culture in which they are so pleased to be immersed, yet they are still fumbling with the, by now, passé blessing of same sex couples. Where is the generous pastoral response for polygamists, where are the polyamorous clergy proudly coming out to be consecrated as bishops in bullet proof vests, where are the Big Love or Die movies? Very disappointing.

Yes, really. While the Supreme Court and the rest of us are all focused on the human right of marriage equality, let’s not forget that the fight doesn’t end with same-sex marriage. We need to legalize polygamy, too. Legalized polygamy in the United States is the constitutional, feminist, and sex-positive choice. More importantly, it would actually help protect, empower, and strengthen women, children, and families.

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The definition of marriage is plastic. Just like heterosexual marriage is no better or worse than homosexual marriage, marriage between two consenting adults is not inherently more or less “correct” than marriage among three (or four, or six) consenting adults. Though polygamists are a minority—a tiny minority, in fact—freedom has no value unless it extends to even the smallest and most marginalized groups among us. So let’s fight for marriage equality until it extends to every same-sex couple in the United States—and then let’s keep fighting. We’re not done yet.