Sorry to piss everyone off, but I can sympathize with Indian folk who are upset with the term 'Redskin' because it was used in a derogatory manor to define Indians. Whether you believe it was the term used for the actual skins of dead indians redeemed for a bounty is something to be debated.
So i'll give them that one. But being offended by team names such as Indians, Chiefs, Braves, Seminoles etc... is just plain silly.