Are Navajo originally Native Mexicans?

Question

For a while, Navajos lived in New Spain and Mexico when it was in the Southwest, so wouldn't that make the Navajo at one time Native Mexicans?

Answer 1

Yes, I believe so.

But then again I always believed that they were.

Answer 2

To me, the Americas include the whole continent, not just the area that is now the United States.

So, to me, they are more aptly described as native Americans.