Not “stolen”. Conquered.
I like to tell people who also say that the land was “stolen” that if it wasn’t for the English, North America eventually probably would have ended up ruled by the Spanish, and look how great all those Spanish countries down south are doing today. Last I recall, the left called them “refugees” that should be let into the white supremacist racist USA.
In 1876, most of the Sioux tribal Chiefs wanted to sell the Black Hills for what they could get out of it.
Only Crazy Horse stood in the way as he was not liked by the other chiefs. They suggested to Gen Crook that CH be assassinated. crook refused.
When he was finally killed, the other chiefs were satisfied that he died by his own violence and did not seek revenge.
Read ON THE BORDER WITH CROOK by Bourke to get an alternate version of how Crazy Horse died. Don’t get your history from movie scripts.
Native Americans, or as I like to call them, Indians, had 12,000 years to get themselves out of the stone age and build a civilization that could repel an influx of immigrants, and they didn't do it.
Their fault!