Heck no! The BIA has stolen from the Indians forever.
I have looked into it and you are correct. The US government totally ripped them off.
What we did to the Indian Nations was unfortunate but necessary at the time. But once the treaties were signed the freking government was obliged to honor their contracts.
But in a perfect example of government stupidity, incompetence, misfeasance, malfeasance and outright thievery the BIA and government looted the trust fund.
The same is true of social security it’s just that we don’t have an enforceable treaty or contract. Good for them.