If the best argument you have is tradition, then you have no argument. We can give up names like "Redskins" or giant goofball mascots like Chief Wahoo. We're not acquiescing to political correctness because, well, it's blatant racism. It doesn't make you a bleeding heart to say, "Fine, we can change the name. It's not a huge deal." In fact, you should embrace the opportunity to rethink things. Cleveland Browns sounds like a euphemism for shit and those fans are stuck with that team name for life (or until they move again).
Just like fans at Fenway Park and Wrigley Field, when they finally bulldoze those stadiums and upgrade to state-of-the-art-parks with good sightlines and enough bathrooms, people will be thankful. We can change things we didn't account for in the 20th century, and it's not that painful. Whether they're called the Redskins of "Red Raiders" it's the same damn team, complete with pigs in drag in the stands and an annually disappointing finish.