Your plan sounds much like the plan Nixon used to create tribal corporations in Alaska - it has not worked any better than the mainland reservation system.
When Nixon took the theoretical aboriginal law which prevailed in AK and turned it into a corporation system he created a monster - ramifications of which created the Special Master class in some mainland treaty tribes as well as granting them Special Rights that no other American enjoys (and in fact withdrew Rights ordinary citizen had enjoyed) - beyond reservation Federal Income Tax exemption and firework and tobacco stands.
You do not want to mess with Treaty Tribal law as it now stands because tribal rights, unlike every one else’s, is enshrined in the US Constitution - in other words their ‘rights’ supersede every one else’s. SCOTUS has ruled three times that: Tribal treaty rights are guaranteed in the US Constitution, all others have mere privileges which can be revoked at any given time. (The tribes are specifically mentioned - while every one else is refereed to generically as ‘people’ or citizens’.)
Whatever you try to do for the tribes with the best of intensions, like Nixon, that will result in granting the tribes a Right/benefit - the creation of which revokes/minimizes the Right/benefit of others.
All of this is why the majority of American Indians do not live on reservations and regard reservation Indians as scum, criminals, druggers and drunks, and practitioners of black magic who scam the ignorant general public (much like muslims use taqyyia) for money to keep the ruling tribal families in power and wealth while pointing to the deliberately impoverished other tribal members as the reason for more money or some special consideration.
Like the woman who gathers stuff in the post - you are supposed to feel sorry for her and petition for her gathering to continue. We do not know who she is in the tribe; we do not know what she actually does with the stuff she gathers; we do not know if the stuff she gathers can be legally gathered by non-Indians; we do not know if non-Indians can use/dispose of the stuff legally; and so on.
No one can ‘fix’ the Indian problem - it is a matter of Constitutional and Treaty law. As set up present day tribal Indians use the ‘We were Created here’ BS to justify their system and as long as the general public remains ignorant of the actualities of reservation life, they will always side with the tribes.
You present some interesting info but I just dont buy your nothing can be done resignation.
That woman who can’t gather goods or have her sheep graze reminded me of the Bundy case. If she were white they would have already tossed her in jail.