it has become obvious to me over my lifetime that the Americas were discovered by Polynesians to the south, Europeans to the North East and Asians to the North West.
These groups which arrived at different times eventually merged and mated creating the Native populations of the Americas. The North American plains indians were very different from the central and south American indians because these groups had mixed some with ancient europeans.
It is difficult for me to believe that Polynesians reached South America in sufficient numbers to make a DNA impact.
They literally had to cross thousands of miles of open ocean.
Bad luck in timing meant no rain fall for water and no migrating fish for food. Few islands meant no wood for repairs or replacement parts. I am thinking the death toll for Polynesian explorers, in a good year, was 90%.
During the glacial era, there were probably a lot more southeast Pacific islands than there are now.
On the other hand, ancient South American art does not indicate a common tradition of long distance ocean crossing.
So we stole the land from the folks who stole it from the people who were there before.
I agree-there is more Asian DNA in Native American racial make-up-Polynesians have/had more East Asian ancestry than anything else while Native Americans in Alaska, Canada, etc are mostly Asian, but with ancestors from China, Siberia, Mongolia, etc.
The most European/Caucasian DNA in a Native population is supposedly in the tribes that originated in the Plains and to the East-I’ve read that the highest percentage of Caucasian DNA is found in members of the Cherokee and related tribes-there have been several studies on that-just the difference in facial features of Native Americans from one tribe to another shows that they are not all descended from just one group of people from one place...