$1:
It wasn't too long ago that the crusades occurred
By whose calendar? Are you from some alternate reality where the Crusades ended last week, rather than several centuries ago?
I think if you talk to most of these terrible people you have a hang up with, that you'll find out its only a small minority, vocal yes, but small nonetheless, who take the bible literally. Most who profess to believe in a god keep it to themselves, and believe wholly in the science behind evolution. You had a bad experience with religion because it didn't give you the answers you wanted.....perhaps you didn't ask the right questions.
Anyways, get over it and leave each to their own. Faith, (you seem to miss this fact) has also brought happiness and stability into many people's lives You seem almost evangelical in your anti religious zeal....just another fanatic screaming at people.