Hate to add nothing, but awesome post stealth hunter. Awesome.
<EDIT>
OK, I will add something. As I said before, separation of church and state protects religion more than it harms it—by far. Any chink you exploit in separation aids enemies of everything we hold important as a nation. Sure, Christians might get little more than scientific ignorance then tend to seek politically (ID)—and that's what many really want, clearly—but in return, we'll see islamist nonsense pushed next, and the precedent will have been set (not to mention those backwards idiots also hate science as much as any other fundies do).
A strictly secular government that protects peoples' right to practice whatever silly fairytale they wish is the best possible world for believers. In any other system they are a vote away from their faith being obligatorily replaced with some other faith. Better to allow no one to take away their right to practice, and allow no one to compel any such religious education—the next religion taught might well be someone else's, not your own.