Schools use these:
Eichmann drew this during his trials at Nuremberg.
Does the "Chief Wahoo" mascot from the Cleveland Indians seem "normal" to you? What about the renditions on this poster? Do they seem "normal"? Only one of the images is actually in use. If you find these offensive, then you have begun to see why many people, especially, Native Americans don't think they are being "honored" with this caricature.
The Supreme Court says NO! Supreme Court declines to take Redskins' naming case Native American activists claimed that team's nickname is so offensive that it does not deserve trademark protection. Supreme court says Activists "waited too long." Hmmm, there are plenty of other things oppressed folks waited for (and the supreme court ...thought it was LONG OVERDUE) like ending slavery, the right for women to vote, etc. etc.