No humans are native to the Americas.
Everybody who lives in the Americas today either came here personally, or is descended from someone who did, or who was dragged here against their will.
The people who live in this hemisphere are adventurers, people who want a better life for themselves and their families, explorers, pioneers, and survivors.
We can discover where people came from by looking at the DNA in their mitochondria. Mitochondria are transmitted by eggs only. Not sperm. Mitochondria are in every cell of our bodies. They contain DNA that is not in the cell nucleus. This DNA is from the mother only. Mitochondrial DNA is the same in all children of the same mother, the same maternal grandmother, and so on through the generations.
The so-called “indigenous people” or “native Americans” have 4 unique mitochondrial DNA sequences. These mitochondrial DNA sequences are also present in Siberians. Therefore, all the so-called “native Americans” are descended from four Siberian women who probably came here with men, or possibly traveled while pregnant.
People aren’t native to Siberia either. People originated in Africa. But since that happened a long time ago, people tend to describe themselves in terms of the country they lived in before they came to the Americas.
Therefore, I propose the term Siberian-Americans or First Americans as the most accurate term to use, rather than “native Americans” or “indigenous people.”