There's a couple things wrong with that assessment. The first is that American Indians did not understand the concept of land ownership,another is that before Indians started a war with European settlers the settlers were paying for the land and the Indians thought they were ripping US off.
After we won the war with them,the land did indeed become ours. That's how war works. When you lose a war,you lose your land. It happened to European countries repeatedly throughout our history,so it's not some kind of unfair double standard that we applied to American Indians. Spain lost their land to Arabs for hundreds of years.
This is not something that has only happened unidirectionally in history,with Europeans taking the land of non-Europeans. In fact,there are wars in Africa all the time where groups of black people are occupied or driven off their land by other black people after losing a war.
The final thing that is wrong with what you are saying is that American Indians are not native to North America,they are native to Siberia.
To the extent that anyone can be said to be native to North America,that group of people would actually be Western European people,according to science.
https://www.telegraph.co.uk/news/ne...e-the-first-to-set-foot-on-North-America.html
Your knowledge of history and anthropology is about 40 years out of date.