Modern revisionists, without any proof, claim that there were many more millions. To which people concerned with the truth might ask: where are the remains of the big cities which are typical signs of large populations? Where are the cemeteries with the bodies of millions of ex-inhabitants? They don't exist.
Only in the fevered imaginations of western civilization-hating leftist academics who want to maintain the myth of the peaceful with nature/non-violent Indian who was ruthlessly exterminated by typical, racist Europeans. The truth is neither side were angels in the matter. But again, leftists simply lie abut virtually everything.
Different tribes were at war with each other.
See our sidebar “Did Columbus Kill All the Indians” in our “Patriot’s History of the United States.” The number in the US/Mexico is now put at 15-40m (numbers vary wildly).
Er, that’s 15-40m existing, total, in N and Central America