At the reservation I visit many Native Americans wear the jersey, not because they like the team but because they associate with the word Redskin. I'm not saying that means it is "good" but it is to them, from what they say, about the same as the "Cowboys" are to us.
There are a lot of teams that need to be "altered", due to their subtle references to the tainted past of the US:
Baltimore Ravens - Hanged Blacks used to be left hanging, while ravens would eat the fleshy parts of the face
Cleveland Browns - Obviously a reference to Hispanics
Pittsburgh Steelers - Nothing more then a payoff to now the Unions have unduly influenced this country
Green Bay Packers - a definite probability of a reference to possible homosexual behavior
Minnesota Vikings - promoting a group that raped and pillaged across the known world, during their time
Houston Texans - an obvious slam against Hispanics; ie: Remember the Alamo
Tennessee Titans - worship of a group that the old world saw as gods
New Orleans Saints - possible Christian beliefs
Tampa Bay Buccaneers - a group that were nothing more then pirates and looters of cities
Buffalo Bills - celebration of how the "White Man" decimated the buffalo herds and thereby destroying the Native Americans way of life
Dallas Cowboys - promoting a time in the US, when Americans were trying to settle the west and destroy the Native American tribes
Denver Broncos - just another reference to the American cowboy
Kansas City Chiefs - on par with the Washington Redskins
Oakland Raiders - their logo makes it obvious that they're referring to the age of pirates and freebooters
San Francisco 49ers - glorifying the movement west of thousands of whites, who destroyed the life of the Native Americans along the way
Allowing these names to exist is the start of the famed "slippery slope"