Don't forget that both sides have completely disregarded treaty. An example close to home: Menominee. Our treaty with them came about because they said they were afraid that if they became US citizens that their way of life would be ruined. They thought that the way white and black people in America lived was bad for the earth, and that men should live by what we now-adays would deem far more primitive means. They convinced us to sign that treaty with them so that they could live in their traditional shelters, dress and hunt traditionally, etc, etc. That is the whole reason they were not just made US citizens. Their complaint, and the reason they gave for not wanting to be US citizens was all about living traditionally and preserving their way of life as a snap shot in time so as to live in harmony with the earth and interfere with nature as little as possible.
Is that why they asked the US govt to teach them agriculture in some of their first treaties?