..towards a Christian-based type of fanaticism similar to the Islamic types.
Not my experience, and I doubt that it holds for most Christians. For the people I know, religion is ultimately a code on how to treat your fellow man. Most aren't that concerned about evolution, or believe everything in the bible is to be taken literally, or is any way a religious fanatic. Of course, there is always a small fanatical element - and that is the element that always draws the attention and publicity precisely because they are outside the norm.