I wanted to mention a bit about blackface. The makeup was put on, and then often a show or skit would be done with lots of extremely ugly racial sterotypes and prejudices. If you look up minstrelsy or blackface there is historical info on the net.
This old school stuff was for "entertainment" if you can believe that. As in many things in history, it wasn't the finest hour of respectability.
FWIW, I see little culturally respectable behavior in her choices. She seems to use AA culture to grab attention and some great unique job opportunities all the while spinning yarn after yarn. Pretty unthinkable stuff, and yet, she seems to revel in it.