I don't think starting with the theory that Chicago neighborhoods are heavily integrated is a good start. It absolutely is not. If there are 10 racist baseball fans in all of baseball, and 3 are Cub fans, 2 are Angel fans, 2 are Red Sox fans, and the Reds, Marlins, and Nationals have 1 racist fan apiece, then yes the Cubs have the most racist fan base. Certainly doesn't help the case, especially when said players/manager have played elsewhere without dropping the race card You don't see the connection between best player and most loved? There's a reason that it was important for Jackie Robinson to be a hell of a baseball player. FTR, I agree that Cubs fans are probably some of the most racist(There's too many yuppies and old people to not be), but they're probably not the worst. I'd guess Boston and Philly are right up there and I know that White Sox fans can be horrible racists.