The 2100-era cultures are explicitly *not* a utopia, and the 1400s-era cultures aren't discussed at all. And, of course, there is no meteor killing only white people. There was a meteor that had disastrous and strange effects across the world, but the only thing specified about Europe is that they didn't invade and conquer the Americas.
Lets see, a meteor strikes and doesn't wipe out white people, it just makes things harder for everyone... But at that time Europe, China and the Califate were much more advanced technologically speaking than anyone in the Americas. With the African slave trade by the califate already centuries old.
How then do you explain the Europeans never discovered the Americas? Or China, or the Califate?
How come with their newfound magic wakandan powers the "natives" didn't engage in their usual shenanigans of killing each other and commiting genocide?
If, as you claimed, the "natives" aren't the "choosen ppl", how come there's not an European superpower with better tech AND magic powers?
Given weird science and superhuman powers, there are all sorts of explanations possible. The game has made it explicit that it's up to individual GMs to decide what the rest of the world (including Europe, Africa, and Asia) are like, if they want to include them. If I were running it, many possibilities come to mind:
1) The Europeans were closer to the crash which was by the North Sea, and the survivors developed stronger psychic powers. With these, they advanced past needing colonies for raw materials during the climate crisis, becoming a psychically-superpowered people like the Organians from Star Trek.
2) The crash happened in Africa, and surviving Africans became an Organian-like psychic superpower. They have kept the different continents separate using their advanced psychic abilities. The Europeans have a highly advanced civilization, but they are kept in by psychic barriers.
3) The crash happened in Central Asia, and all of Asia, Africa, and Europe have been busy fighting with the beings that came out of the asteroid crash. However, the creatures hate water, which is what has kept the Americas safe.
But none of these explanations are necessary for the game. The game could simply stay focused in the Americas.
I discussed about American civilization in the other thread. In an alternate history that was restricted to only real-world science, I don't think Native American civilizations would advance to high technology in seven hundred years even with isolation. However, this is science fantasy - not hard sci-fi. With psychic powers, there are lots of ways for culture and technology to develop. Having telepaths could promote egalitarianism and cooperation, and telekinetics could have intuitive knowledge of some physical principles like gravity, force, chemistry, and electricity. It depends how the powers manifest and what effects they have.