I wouldn't say that an Apache from Northern Mexico looked much like Mayan from Southern Mexico and neither looks much like the descendants of the Incas in Chile. Other than having brownish skin, dark eyes and dark hair, otherwise they look alot different. In Argentina (the Patagonia part of which is as far south as you can get in South America) the current inhabitants look pretty European, although like "white" Americans, they are a mixture European peoples, English, German, and Spanish mostly. I don't know what the "original" Amerindians looked like, probably a bit like the Incas, but maybe not. (I put "original" in quotes because there were others living there before them)
From what you have said, and your obvious support for the illegal invasion of America by Mexicans, I judge your position to be self serving in an attempt to advance the theory that Mexicans are somehow related to and descended form original Americans, a piton in the rock of our national sovereignty.
How do you feel about La Raza and similar movements. Support their agenda, do you?
Bah. Bugger off, mate.