These Twitter folks are great fodder for memes
Beyond the goof, I have two issues with these reactions:
1) Misuse of the word blackface which now seems applied anytime anyone puts on non-white makeup. Soon, putting tanning cream will be included in the "blackface" "definition". It's inclusivity gone mad.
2) Completely ignoring context by not even watching the movie and attempting to throw shit at it and at RDJ.
As the meme says, they went full retard and it's not okay. Well, it's okay only insofar as they provide memespiration.