This is true. Harder to sort through the bullshit, but that is fine. Means we are winning.
The fallen angels/watchers taught humans certain rituals and traditions that are practiced in witchcraft, masonry, paganism, etc. Azazal is Tubal-Cain, who is a big deal in witchcraft and masonry. They worship their false creator god, and they hate the true Creator mentioned in the Declaration of Independence, the one who endowed us with Natural Law rights and Free Will.
The fallen angels/watchers and their followers are trespassers and usurpers of authority.
Dominion was given to us by the Creator, but we need to fight to keep it. This is the ongoing war.
Genesis 6 and the Nephilim, Book of Enoch, Book of Ezekial, Sumerian creation story, Atra Hasis, Enuma Elish, etc. It is all there.