they can get away with it or they are so clueless they don't even register it. If a white comedian introduced themselves to a Black comic in their wigger stage persona or whatever, theyd get checked or at the very least clowned on. But this is something white guys do, comic or not a comic. They're all one PbR away from full Black face. Bring out the goldschlager and they'll let Jeff Dunham stick their hand up their ass, while they try to muster their *spot on* Akhmed the terrorist impression.