They don't have to live there any more than people have to live in Detroit. But, when you're on the dole it's hard to make the break to independence. Historians estimate that in the struggle against England one-third of the colonists wanted independence--and responsibility--one-third wanted to stay with the King and one-third didn't care.
I have a friend who is a Zapotec and lives in a Zapotec village here in Mexico. His dream is that nothing will change, ever. He fought hard against allowing his granddaughter to go to school and learn to speak Spanish. He told me that since he grows corn his family will never be hungry. I said, "That's true and you'll never get that pickup truck you dream about." He agreed he won't.
One year where there was no corn crop I asked why he didn't irrigate. "Because my parents didn't irrigate, my grandparents didn't irrigate, and I won't irrigate.
We've drifted from evil mothers to the government-created plight of Native Americans. When I was growing up I knew some Indians but it was in the East and they weren't living on reservations. They had finished high school, had normal jobs, and, gasp, normal lives. I moved out West and a friend of mine had adopted five Sioux siblings, all suffering from fetal alcohol syndrome. Let's hear it for government solution to problems.
Seriously. If I wanted to punish the Indians for all time I'd put them on land that's unproductive, give them independence but not really, provide them with welfare that would guarantee a life of poverty, poor education, and plenty of alcohol. If I wanted to destroy all black people I'd give them an inadequate education, destroy the family, and give them welfare to keep them in the cancerous cities killing each other and doing drugs. Basically, the plan our government has been following since President Lyndon B. Johnson. And, it's working.