Euripides posted... Side story:
I teach in a university theatre program. In my first year, we produced a play (that was not a comedy), in which one white character told another white character a racist joke. The joke did not contain any slurs, but it was clearly making fun of black people. It was not played for a laugh. The playwright's intention was to show that the person telling the joke was an asshole.
That context did not matter to several black students who saw the show and were upset by the joke. It turned into a small shit storm, and we received many angry emails and phone calls about the show.
tl;dr "It's okay that they're saying racist stuff because them being racist is the point!" doesn't hold up with the people who are being joked about
It does hold up if two conditions are fulfilled:
- The writer is skilled enough to make it clear to the audience what the intention is.
- The audience isn't a bunch of morons.