Managed to find the offending hadozee artwork
posted on Twitter by someone "literally educated about black stereotypes."
Apparently, that is the fantasy version of this:
If you aren't seeing the obvious resemblance, you are probably lacking in education about black stereotypes. Hazodee space (ex-)slave monkeys represent African Americans like orcs and drow. Luckily the errata helped fix their problematic lore by removing it. One of the best changes since they cut almost all of the first chapter right from Volo's Guide to Monsters, since almost every paragraph in it was racist, depicting various diverse and marginalised peoples such as beholders, mind flayers, goblinoids, and hags as evil. It's honestly shocking how basically every monster actually represents a real life minority.
Gary Gygax used to go through old books and dictionaries to find new words to use in the game. Now, they go through their own books to find new words to remove from the game.