It's the man's job to keep the party bumpin'. You've got to respect his decisions as a DJ in regards to what he chooses to play and what he doesn't.
If he said, "Get that taco bendin' shite (or any other racist epithet) out of here, I'm not playing it," then THAT would have been racist.
If he said, "Get that taco bendin' shite (or any other racist epithet) out of here, I'm not playing it," then THAT would have been racist.