You don't have to be in the pew every Sunday? I'm sure he's right about that, but I definitely think it helps. Religion may not cause anti-homosexual attitudes, but people definitely use their religions to justify their views. It's harder to do that, especially in public, when you have to back it up with something.
But, really, this seems pretty typical. Just more hyperbole, slander and outright lies. I find it hard to even stay serious when discussing Rick Perry and politicians like him, so, well, generally I try to avoid it.