i should just point out, because also i have other interests that have brought up these topics, like the newest Tomb Raider game heavily features apocalypse and the notion of "gods" in it and digging deaper into the south american stories about the subject, i mean, it's almost universally understood that the Aztecs had a prophecy about the return of the gods and that they were so easy to overrun and mostly exterminate because the spanish people were pale skinned and this put these people into a state of religious derived shock that made them easy prey
there are other stories about "bright people" in other mythologies, notably african and australian too
it just seems to me like there must be some threads and synthesis of this somewhere in Christendom because you don't have to be a life long dedicated scholar to bump into this stuff