"On Christmas Eve, I sent a satirical tweet about an imaginary concept, 'white genocide,'" he said in an e-mail. 'For those who haven't bothered to do their research, 'white genocide' is an idea invented by white supremacists and used to denounce everything from interracial relationships to multicultural policies (and most recently, against a tweet by State Farm Insurance). It is a figment of the racist imagination, it should be mocked, and I'm glad to have mocked it."