He is bi.
But Christianity is just the newest, most popular religion of this time. It matches up with basically all the other religions, and just changes the names and dates to bring them closer to our time. Sadly, Christianity caught on during a time when everyone thought it would be a good idea (and it is a good idea) to write everything down and expand the then narrow margin of thought (0ish C.E.). So Christianity was written into the history books and programmed into the minds of an oppressed people, especially after Rome fell. The dark ages were rough times, and people were exceptionally succeptible to a certain mindset which would give them relief from the hardships of their daily life. Those who lived comfortably, were the least reverent, but were often rewarded with high ranking, religious positions such as Barons, Bishops, etc.
Christianity takes the basis of physics and allows people to channel it into a simple, single belief, thus giving them a relief valve, and the will to carry on. Because God is so strongly believed in, people can take relief that they aren't alone in believing, and, according to phsyics, supposing everybody could use 100% of their brain, and all believe entirely that something is real, the matter around them would in fact shift, and God would be real.
Unfortunately such passion has been focused into something as futile as a means of our existance, and not pooled into something constructive and useful, like furthering our expansion into space!
That is MY view on religion. It's just a silly means of escape from the reality of life, and people should really accept this and realize that there is so much more beauty and wonder left to be had in the NOW, not in some paradise in the clouds where everything is brought to you with a thought. Heaven is the pussy way out, Living is reality.