As a person from a country with <20% of religious people, about half of them (lukewarm) Catholics, reading some of these comments, the only thing that comes to my mind is...W.T.F.?
It varies greatly from state to state; everywhere I grew up and went to school, there were a lot less religious conservatives so it wasn't an issue for me. But sometimes visiting other states, it can be a bit of a shock to see the amount of religious bumper stickers, house decorations, clothing, etc.