The ethnic background of peoples in the various regions of the western hemisphere are indicators of how complete the genocide was in that region. In Central America, the Andes, and in the Arctic, the natives were not wiped out, and continue to exist to this day. In the USA, Canada, Brazil and Argentina, the natives were almost completely wiped out, and so the ancestry of the people who live there are almost all from settler colonialists and enslaved people. At the margins of those regions (which is to say, most of the new world), you get a fusion of all these people.
Because it's been 500 years, it's common for most people in the new world to have a very mixed set of ancestors. Most Mexicans have a mix of native and European ancestors, and a significant minority have only native ancestors (that is, the last Eurasian ancestor was literally one of the people who crossed the bearing straight during the ice age).
The ethnic background of peoples in the various regions of the western hemisphere are indicators of how complete the genocide was in that region. In Central America, the Andes, and in the Arctic, the natives were not wiped out, and continue to exist to this day. In the USA, Canada, Brazil and Argentina, the natives were almost completely wiped out, and so the ancestry of the people who live there are almost all from settler colonialists and enslaved people. At the margins of those regions (which is to say, most of the new world), you get a fusion of all these people.
Because it's been 500 years, it's common for most people in the new world to have a very mixed set of ancestors. Most Mexicans have a mix of native and European ancestors, and a significant minority have only native ancestors (that is, the last Eurasian ancestor was literally one of the people who crossed the bearing straight during the ice age).