alcogiggles

Different cults fight eachother. For example, I know that Scientologists have been at war with the Illuminati for awhile now.

ardvarcus

Occultists are, for the most part, irrational and egocentric. They want to present themselves as possessing some great secret that gives them power over others, that elevates them spiritualy, that makes them special. When the encounter another occultist with a different opinion, naturally the start hissing and spitting at each other like cats. If their philosophies conflict, they can't both be right, and both of them really need to keep telling themselves that they are right in order to preserve their fragile egos.

About the only time occultists band together is when they unite against Christianity, which they almost all hate, because it represents the culture that rejected them and made them feel powerless. Also, Christianity demands that human beings act according to an agreed upon moral standard, and occultists don't want to be told that they are degenerates and perverts (which many of them are).