I find your lack of understanding for the History of the United States very offensive.
Folks.. the Spanish, and the Mexican Nation after the Spanish, offered a very serious Silver Cartwheel for an Indian Scalp. That folks.. was a whole lot of money and in fact, came from the Catholic Church. The American Apache, Comanche, Navajo and all the rest, were the foremost targets of that policy. The hatred for the Spanish Solders was intense, and when the policy was rejuvenated under the Mexican Army, the hatred continued. There were very, very few Mexicans the Indians allowed in the United States, and almost no Mexican Indians.
Her people were not in the United States. They were in Mexico.
The influx of immigrants ... the fleeing from Europe.. was massive. The role of 'Hunter Gatherers', and that was almost all the tribes, was NOT working. They had to change, and in, for example, the Sioux Nation, they became farmers and boy did they do well.. and boy are they still doing well. The American Aborigine assimilated with the European Farmers and both benefited a very great deal.
Europeans had booze. American Indians were not tolerant to that booze. No one.. none.. understood it. Everyone thought the Indians were simply drinking to much. The science was not in place, and the Indians lost respect in the Southwest. We understand now.. that has changed.
My last point: there were well over a thousand languages among the Native Aborigine. They learned English because it became a language of trade, and the tribes had to trade, or die.
Crazy isn't it... no history and making very ugly comments.