Prejudice as a mental illness? My first inclination is to call it just plain silly. But this person says it better:
"I think it's absurd," said Sally Satel, a psychiatrist and the author of "PC, M.D.: How Political Correctness Is Corrupting Medicine." Satel said the diagnosis would allow hate-crime perpetrators to evade responsibility by claiming they suffered from a mental illness. "You could use it as a defense."