As a matter of history, the Native Americans defended themselves from outside aggression.
Before the white Europeans arrived in North America most Indian tribes were in constant warfare with neighboring tribes.
Even after the Europeans arrived in North America and introduced the horse, Indian tribes continued to wage war among each other. The Crow and Sioux were always at war with each other. The Mojave Indians on foot would travel hundreds of miles to wage war against the Maricopa and Pima.
The Comanche despised Mexicans and all indians who resided in what is Mexico today. The Comanche were warriors who raided other tribes for women and horses. The Mescalero, Chiricahua, Lipan and Jicarilla, Apaches were full time warriors.
There were many North American tribes who were known as warriors while other tribes who weren't known as being warriors like the Pima, Hopi and Yavapai.
The Mojave are incorrectly called the Apache Mojave even though the Mojave have nothing in common with the Apache. They were called the Apache Mojave because they were war like and always fighting other tribes like the Apache did.
Who conquered the Aztecs ? Not the Spaniards but the other tribes of Mexico who allied with the Spaniards.
And that the American Indian was part of the land, lived with mother nature and were stewards of the land is all PC revisionist history BS.
When an Indian wanted a nut from a tree, he cut down the tree to get to the nut.
Before the American plains Indians adopted those illegal alien horses from Europe, a buffalo hunt was setting fire to the land to force thousands of buffalo to stampede to their deaths over cliffs so the Indian could gather the hides and meat of a couple hundred buffalo leaving thousands to rot.