Christopher Hitchens once again broadcasts his failure to understand the basic nature of religion.
People do not feel there is a god because they are told to by the bible or koran. They believe in god because there is a set of human emotions that gives the impression of the divine - love, awe, wonderment etc.
Religions are merely a tool to interpret and accentuate these feelings. Trying to prove the non-existence of god by attacking religious doctrine is like trying to prove the non-existence of Belgium by pointing out factual errors in Tintin.