Most Christians are decent enough people, their main flaw being that they tend to see things through "Bible glasses" and reject reason and logic if it conflicts with their religious views. Also those raised in religious homes are conditioned to believe what they're told on the basis of authority rather than to reason things out for themselves based on factual evidence, making them more vulnerable to being manipulated by various sources, including the government and media. A good example of this would be all the people who actually take Bill O'Reilly seriously, despite that a lot of what he says is just opinionated bullshit and the fact that he has no credentials to even claim to be an expert on politics. Though I guess even liberals arn't immune to believing what they want to hear, I guess its just a flaw of human nature.
Anyway, the fundamentalists(of all religions) are the ones who would drag us back to the intellectual dark ages if they had their way. The muslim fundies are pretty much openly trying to do that now through their little jihad bullshit.