the whole thing about there being no migration or travel between the americas and eurasia is nonsense also. firstly, it's possible to sail across the pacific and the atlantic in primitive boats. but why would you even do that if you can just hop across the Bering Strait?

secondly, in the 1 million years according to the ice cores and other evidence of glaciation, that, and probably between canada and northwest europe was probably solid ice to walk across as well, covered in seals and polar bears.
it probably got so frozen up even that there was a connection between argentina and southern australia.
so there's basically no way that you are not related to all of the other humans on the planet and your so-called race is a myopic, short term of separation, and you are cherrypicking a tiny part of the data to support your absurd sense of superiority.
as for what you talk about how shitty those other people are? yeah, i'm not gonna argue with that. but there's a much larger arc of the story there. most of it isn't even hardly fully understood even, because so much of history has been perverted and distorted. and yeah, while we are talking about it, a lot of the people who did all that perverting were literally white people.
most likely, this is because of the fact that there used to be more kinds of humans than there is now, and the "white race" actually traces back to north africa about 40,000 years ago. they were taller, they discovered how to herd cattle because they acquired a mutation to be able to drink milk after childhood, and developed much larger (like 7-9 feet tall) physiques than we have now. among those, there were some who spread out across the planet and dominated the smaller, more primitive humans, and that's how it came to be that 70% of humanity can drink milk now.
anyway, it's just ignorant to say that anyone is only the product of things that came before them. people actually do things in their lifetimes that make a much bigger difference than what they were taught and who their parents were.