All true I saw it first hand. It all started with the Democrat Andrew Jackson!
I would not put Native Americans in the same category as negroes and other malcontents. They truly did get screwed over (starting with Andrew Jackson who wanted the historic Cherokee Nation for mining) and on several occasions what the U.S. Army did to the Natives bordered on genocide.
Granted, that is not the least bit of excuse for Indians today who become shiftless alcoholics. But remember that the vast majority live in absolute nothingness on their "reservations", lacking any sort of jobs, electricity, running water, and in many cases windows and floors. Have you ever driven through the Navajo Nation for instance? I am sure that if I grew up like that I'd be pretty darn messed-up too.