Perhaps the intention of the posters is noble, they presume they are defending the rights of black actors. But it's all just racism to me.
Exactly. I mentioned before that George Takei would get jibes in the 70s and 80s that he should only ever audition for "Asian roles", and that few Hollywood films and Broadway plays were written with Asian actors in mind.
Heaven help him now that he's come out, because now he needs to only audition for mature-age gay Asian roles?
They had STiD written and wanted a strong charismatic antagonist. The best actor auditioned - and won it, even though he didn't physically resemble two previous actors who'd been sought for the role.