"political correctness" usually makes me puke and this smells like that to me. One of the purposes of "comedy" is to enable people to laugh at themselves, so sarcasm, parody etc serve that purpose.
Otherwise, I think I'm qualified to see this issue from both sides since even though I'm a white guy, I did have a short soul brother career...I also have a well developed sense of humor and laugh at people who don't. Hey, I think I'll be Barak Obama for halloween! ...holding my Nobel peace of pizza prize. This is me and my soul sister back in the day: