[Theoria]

Yeah, at the time of the writing, the ‘tribes’ were still pretty unique and separate cultures. I know that they were not all like that, but they were still ‘different’. A different story today. But, there isn't some big push by people trying to get rid of the concept of reservations and such.

[PIF]

“But, there isn't some big push by people trying to get rid of the concept of reservations and such.”

That was Nixon's thought. He started with the Alaska Aboriginals and ended with Special Masters, casinos, and SCOTUS declarations that “... only Treaty Tribes have Constitutionally guaranteed Rights, all others have mere privileges which can be revoked at any given time.”