There are no indigenous people in the Americas. Just thought someone needed to say it.
You speak mule cookies, Sir. Just thought someone needed to say that.
That's technically true of virtually any people, anywhere. If one goes back far enough they all came from somewhere else. In the case of American Indians, aren't they thought (by anthropologists) to have migrated over land bridges from what is Now Siberia?
You're right. But then, with the possible exception of West Africa, there are no indigenous people anywhere. Every nation, again excepting West Africa, was peopled by people who came from somewhere else.
I think the Canadians have it right. They refer to what we call Indians as "First Nation." They got here before anyone else did, but the land was vacant when they arrived.