I'm not sure I have a problem with tribal sovereignty. They are the remnants of nations...we regognized them as nations, treated with them as nations and in general screwed their eyes out, I just don't have a lot sympathy with the stance in the article.
The problem is that the "rank and file" Indian doesn't see dime one from these enterprises. Instead, the money goes to the tribal leaders, who end up as multi-millionaires who keep the rest of their people in squalor while raping the communities around the casino.
Do a google search on Ray Halbriter and Oneida County sometime for a good example.