Considering he was neither priest nor scholar, the young man gave sensible, thoughtful replies -- the more so, perhaps, for being untrained, for he had not learned what he should believe or should not believe. Present a statement to him in flagrant contradiction to all Christian doctrine and he could be persuaded to agree on its good sense, unless he remembered it was the sort of thing of which pyres are made for the incautious.
Everyone claims to be okay with freedom of religion, but the moment you mention God there is a strange tension that fills the air. If there was a 6th sense, that would be it.
In a free society, people may be entitled to their belief, but they are not entitled to bigotry. To the bigots, this may seem like tyranny, but it's an absolute necessity, just like it is absolutely imperative that psychopathic murderers are kept off the streets.
People cited violation of the First Amendment when a New Jersey schoolteacher asserted that evolution and the Big Bang are not scientific and that Noah's ark carried dinosaurs. This case is not about the need to separate church and state; it's about the need to separate ignorant, scientifically illiterate people from the ranks of teachers.