"If you believe in God then you believe in intelligent design."
I imagine it could serve as the starting point for an interesting engagement with Christopher Hitchens, who believes in neither, but would, I think, accept it. In fact, he might argue that since a belief in God commits you to a belief in ID, you should (on pain of being a complete ass about the origin of your species) reject the belief in God. As an argument against God, that's pretty solid rhetoric. But it is also a suitable argument for ID.
After all, atheists are not really opposed to ID "on the evidence" (as they claim) but as a point of faith. (I know that's become a trite jab in these discussions. It can't be helped here.) There can't be intelligent design because there isn't a designer, the argument runs. Whatever "evidence" you adduce for design is therefore illusory. But, leave aside evidence for a second, the really interesting audience for ID is not those who don't believe in God in the first place. It is those who believe there is a God and that evolution explains our origins.
What the hell kind of a position is that? I think it is fair to ask. If you're not going to let God explain what you are, where you came from, and why you are here, what's He doing in your doxy?