I've always thought of it as an evolution from henotheism.
However, I have heard of your idea as a cult to follow Akhenaten's rule. Akhenaten was purged from history by the priest class, a curse put upon anyone who said or wrote his name, and so Jewish monotheism was said to have been his...
In nature, everything that can go wrong does go wrong.
Most of us have an extreme biological reaction at the sight of a child to protect and feed it. We say "awwwwwwww...." Peds get an erection. I think their wires are crossed. It's very tragic.