The really funny thing about Christianity is that people that don't practice the religion are more knowledgeable about it's own history then the those that do.  You should realize that the 'God' in Christianity was originally a warrior god, one of many in the old Canaanite traditions of ancient Israel who basically, according to scriptures, kicked out the other gods from the high pantheon and declared he was the most important of the bunch.  It's where the "I am the one true god" and "shall not bow before any other gods" crap comes from.