Kishkizism is a religion founded by an anonymous member of a ridiculous species named humanity, One day it will be wiped out and probably has by the time you are reading this.
The simplistic brain of this rather barbaric and unevolved human happened to belong to a male body, rather than a female. More specifically, it happened to belong to a heterosexual male.
So this heterosexual male, aged eighteen at the time of founding the religion, decided to come up with a religion because he was bored.
So he did.