The one where christianity disproves itself

This is from ProfMTH on YouTube. He outlines one of the points about the cult of christ that got me re-thinking my commitment to this nonsense several years back now. He uses examples of some christian sects, but there are so, so many who declare Jesus as the son of god, but these believers are divided, sometimes violently, among themselves. My own former faith, the Anglicans, have been dividing over their views of the bible lately, a collection of literature that should surely be ignored by intelligent people. Many other sects have divided over a lot less. Believers in christ must see that this division is contrary to the teachings of their magic book, but they persist in it anyway. The bible says that you must believe that Jesus is the son of god in order to be saved, yet each sect has decided to add something more to the requirement, to expand on that simple notion. They decided not to associate with those who don't like their new take on things. They sometimes fight those who disagree. They excommunicate or ostracize people who haven't quite bought the sect's point of view completely. The very proof that the cult of christ is wrong is in the people who claim it as their own.