[PapaBear3625]

They have a pretty good racket going, and it would be bad for business if it turned out the first “native Americans” weren’t Injuns.

If it turned out that people from prehistoric Europe were here before the "native" Americans, and the "native" Americans from Asia exterminated them, it would severely disrupt their narrative.

[ThanhPhero]

In consideration of the Tarim Basin folks, perhaps those possible people from “Europe” were from Asia after all. All of the European groups seem to have come out of Central Asia in waves over the millennia.