I can't get too worked up about this; using a people group as a mascot seems a bit dehumanizing.
And yet no outrage over Celtics, Patriots, Vikings, Texans, Pirates, Yankees, Padres, Rangers, Trojans, Mountaineers, Knights, Swedes, Highlanders, Pioneers, Quakers, Vandals, Aggies, Tar Heels, Fighting Irish, Rebels, Spartans, ...........
As a side note I googled college team names for many of those and Puerto Rico Tarzans and Janes was in the list.