Tell that to the 'Fighting Sioux' of the University of N. Dakota. I may be off on a few points, but the University is located in a State named after the Dakota Sioux, has an enrollment of Sioux students that is either majority or very large plurality, is located either on or very near a large Sioux reservation, offers a degree or at least numerous courses in the history and culture of the Sioux nation and has written endorsement from several Sioux tribal governments. The NCAA forced them to change. To the eternal credit of the University and the State of North Dakota, they are now officially the UND Athletic Teams, with NO nickname, Moniker or Mascot.