There are so many names which are offensive, not just Indian nicknames.
Notre Dame Fighting Irish, offends the Irish
Boston Celtics, offends the Celtic/Irish people
Milwaukee Brewers, offends beer companies and their workers
Green Bay Packers, offends meat packers
Pittsburgh Steelers, offends steel workers
Pittsburgh Pirates, Tampa Bay Buccaneers, Oakland Raiders, is giving honor to criminals and outlaws.
San Diego Padres, offensive to the Catholic church, Catholics, and priests everywhere.
Texas Rangers, offensive to the law enforcement agency of that same name.
Chicago White Sox - does this offend people of color???
New Orleans Saints - offensive to the saints of the Catholic Church.
I’m sure there are others, but you get the point. To be politically correct, we will have to cleanse society of so many established institutions and names.
Here in Pensacola we have a baseball team named Blue Wahoo, it’s a fish. I wonder who is offended.