Aren’t Mexicans native Americans ? I’ve seen dna results

Not to bring up politics but the deporting of Mexicans is kind of backwards since they’re 30-60% Native American so they were in America first and it was their land first ? Or am I wrong just asking for clarity I’ve seen this being thrown around.

I typed in Mexican dna and almost all of them had extremely high numbers of Native American than any other dna they have

Also I’ve seen many black ppl claim they’re the real native Americans but I’m starting to think the Mexicans actually are