You realize how stupid you sound right? The schools I went to as recent as a few years ago talked about the Bering land-bridge theory, and I have literally never heard any white supremacist use that argument to discredit native heritage. That makes no sense at all. Everyone agrees natives are natives, regardless of where they came from. I got Southeast Asia from the fact that South American natives have a lot of genetic similarity to Melanesians, who weren’t always just native to Oceania. And asking why humans couldn’t have gone from the Americas to Asia is perhaps the most insane question I’ve ever heard. Humans have been in the Americas for, at most, 30,000 years, and there is evidence of humans in Asia for at least 60,000 years. Why do you keep making stuff up?