Meh, to be entirely honest, I joke about white people sometimes, too.
I figure since white people got to do it over the course of 300-something years, it shouldn't matter if I make less-badly-intentioned ones every once in a while.
“…Judge not what a man has done, but judge what he could have done if he was a different bloke altogether. For art thou a leper? And a leper can changeth his spots…” --Rudy Wade, Misfits (Series 4, Episode 8)