Black rappers could be successful too if they made music that appealed to the masses. T.I has proven that and also Nelly back when "Just a Dream" was released. Most rappers place themselves in a box. Whose fault is that? Not only that a lot of rappers release a mass amount of trash. For example J.Cole music sales because it has meaning. Drake's music sales because it's quality. THE RAP GAME NEEDS TO STEP IT UP in order to compete with mainstream artist.