If Native Americans are shown any acknowledgement and support for being the original inhabitants of North America,

This was already the case 2 years ago, when the Supreme Court ruled in favor of the Indians for taking Oklahoma territory.

https://www.npr.org/2020/07/09/889562040/supreme-court-rules-that-about-half-of-oklahoma-is-indian-land

In fact, saying "Indians should get land" is the least controversial point out there. Jared Taylor has done many write ups that even show that only Indians can practice race realism, such as requiring DNA tests to enter a reservation. White Americans do not have the same luxury after Jim Crow was banned.

is that Europeans will be encouraged to do the same in Europe and it can be used to halt and reverse the great replacement, as it likely will one day.

European history is already full of examples of self determination. Using the Native Indians who are located a continent away is a bizarre role model. Why not look at the Irish? Or the Spanish?

Or once again, even the Palestinians are better because they're up against an enemy who influences the globe. Drunk Indians who are given paychecks for existing are nothing to take inspiration from.