Dissed Jokes

John Rocker was on a NY subway and many people stopped to stare at him. One lady said, “I hate you, Rocker, you dissed New York. ”
The next person says, “Thanks, Rocker. You dissed homosexuals. ”
The next guys says, “You dissed people with mental problems. ”
Rocker is shocked and says, “I didn’t say anything about people with mental problems! ”
The man smiles and says, “Now people think that all people with mental problems are racist and dumb. ”