I've begun reading The Books of Enoch by Joseph B. Lumpkin.
What if "the watchers" were the ancient version of National Geographic journalists and scientists, sent to watch how primitive societies do things? What if the watchers were from the first world countries of their time, the same people Graham Hancock talks about in his books? What if the traditions and stories we have came down from the third world countries (our ancestors), so the history was skewed from the primitive perception?
Not "angels" nor supernatural beings at all, but humans from societies more advanced than the primitive ones who remembered them. The ancient ones who, in the lore of many countries, were destroyed because of their wickedness by great flooding. Humans who, over the millennia, were elevated into some sort of God-beings, supernatural beings, angels, when all they actually were were humans who had access to fire, metal working, vices, and so forth that the primitive societies didn't have. Was it God who didn't want the primitives to have this, or were the publishers upset because they now had less interesting material to provide to their readers?