Don't Do Unto Others
The difference between gay marriage and polygamy.
Gays who seek to marry want the same thing. They're not looking for the right to sleep around. They already have that. It's called dating. A friend once explained to me why gay men have sex on the first date: Nobody says no. Your partner, being of the same sex, is as eager as you are to get it on. But he's also as eager as you are to get it on with somebody else. And if you really like him, you don't want that. You want him all to yourself. That's why marriage, not polygamy, is in your nature, and in our future.
Will Saletan covers science, technology, and politics for Slate and says a lot of things that get him in trouble.
Photograph of gay wedding cake topper on the Slate home page by Elyse Lewin/PictureArts.