From an interview with Christian Landers, he of Stuff White People Like:

We have a generation of white people who want nothing more than to distance themselves from being white. They need to believe that the earth is being destroyed by evil white people, culture is ruined by the wrong kind of white people, and that history’s sins were committed by distant relatives. And so by eating at ethnic restaurants, travelling, trying to save the world, you can say that “I’m part of the solution, if everyone were like me, the world would be so much better.” I think that attitude lends itself to pretty easy satire.