It really doesn't make sense, does it.
"Why can't gay people marry each other?"
"I'm just curious. Why can't they?"
"Oh. Well, the bible says it's wrong, for one."
"But the bible also says it's okay to kill, rape, and enslave people. And they say that it's a sin to be raped or to work on Sunday."
"Honey, look… the bible was written a long time ago, and back then things like that were common. Today, though, we know that some of the bible's teachings are outdated and morally wrong.
"Did you hear what you just said?"
"I want you to repeat what you just said to yourself, and I'm going to ask you again: why can't gay people marry each other?"
"It's a mystery, isn't it."