Go read about the absolute ignorance and hysteria that dogged humankind up to the 1500's. THOSE ancestors *really* thought they were living in the world described in the bible, and they fucking acted on it big-time. Your religious belief is a pale, weak superstition in comparison, akin to throwing salt over your shoulder or not stepping on the cracks in the pavement.
I believe there are lots of good Christians out there and many of them have good hearts and are really trying to improve the world. For many of them, their faith is an inspiration, brings them comfort, and I'm very happy they have it. I'm also happy they have community and fellowship with their church members. I'm especially happy with those who appreciate their freedoms and want all their fellow humans to have the same freedoms.
I just also believe that they either
1) haven't read the bible (ding ding ding)
2) cherry pick which parts they find acceptable
3) don't care that much / don't actually try to rationalize the text
4) are in total agreement with the bible and are total assholes (for example, westboro baptist church)
The God of the bible is not a good guy (esp of the old testament, but also some of the new, such as revelations). He is misogynistic, he plays favorites with races, he is narcissistic, he is cruel, and he is unjust. Thats true even if you can rationalize the somewhat ridiculous plot, the fact that he needs Satan for free will to exist (and is ultimately responsible for him), that he doesn't want his creations to have the total knowledge necessary to love him, and having given them a choice, punishes them for seeking it, the fact that needing a human sacrifice for 'sin' is nonsensical (he's God, so he only requires this if he actually requires this), that fact that dying for someone's sins is not actually a sacrifice if you are then not dead, etc, etc. This is after you get over all the contradictory text and the fact that miracles were much more common in the past when we didn't have science to explain things.
A rational person would ask himself, "If this is really the God of the universe, do I want to support him"?
I don't believe most Americans actually question things to this point. Or they are actually ok with the God of the bible, which to me is bizarre, unless the of course are afraid of not following lockstep, where to them the alternative is external pain and suffering beyond comprehension.
Free will, my ass.