The whole "fag" thing happens because an ignorant bunch of goat herders had only one purpose in their wandering about: BREEDING.
Ensure the food supply. Ensure the Tribes existence. In time some old fool of an Elder decided to say that their vicious Sky Spirit wants it this way.
By an accident of history the monotheistic cults survived until today. And their followers still say you can only be happy in penis-vaginaland in a state of breeder bliss.