I would agree with much that you write, but there is another truth underlying this reality. I think of the very first immigrants — the Europeans that invaded America — the America of the Native Americans before the British/Spanish/Italian/French etc. arrived. These immigrants claimed ownership of the land. And they brought smallpox and other diseases with them that did indeed wipe out millions of Native Americans who had no immunity. Up to 80% of the Native population in North America alone. The details of how this was done are horrific. Of course, it is the descendants of these same Europeans who have resisted newcomers who are not “like them.”