Is Christianity a cult?

What if the Christian God who is a tyrant, narcissist, jealous, hateful, angry, sexist, homophobic, murderer who killed 2.8 million innocent people by flooding the entire planet, literally burns and kills all non-believers in a torture chamber, and enslaves all his followers is actually... THE DEVIL?!? And we are currently in hell... OR perhaps our collective karma is what creates these things. We can't point our fingers at a god or a devil. We must go within. It's been us the..whole..time... Hmmm