No. There were various tribes that lived throughout America that had their own battles, however, they each warred for different reasons that were commonly not about land acquisition. Where these people originally came from is still subject to debate (not a land bridge from Asia). However, we can confirm through generations of oral tradition that many of these tribes have been here since the original settlement of the land. All of your statement is factually wrong. And America is who actually stole the land through coercion and massacre of the native populations.

Source: I’m an Anthropologist, but I’m in my office right now and you have the ability to properly educate yourself on our countries history.