It's really about twisted thinking, not race, religion, or ethnicity. With perverse "leaders" like Jackson and Sharpton, what can you expect? Better question: how did these people (and Streep, Cher, and co. ) get to be "leaders"?
I would have gone along with calling out Liberals or Dems... but there are plenty of White Performers than need the rebuke along with their counterparts of color.
Dear black performers : Real Americans don't want you at the inauguration anyway. P.S. - If the inauguration seems too white or "redneck" , remember that like EVERYTHING ELSE about this election , it's because of the actions of YOUR party.