Blizzard won’t touch anything about racism with a 10 foot pole.
Personally I’ve always thought the Forsaken should have the most trouble with racism. Imagine meeting someone from the horde and they’re like “Oh this is my friend! He’s awesome!” And a half rotten corpse shambles up to you with a missing jaw and no eyes.
There NO WAY people would just be like “Ok sure!” Especially factions like the Arathi who are very light oriented and have enemies that use necromancy.
And it’s not even that people are racist, it’s that you’re trying to convince someone to trust a rotten corpse. It would be incredibly jarring to see one, let alone speak to them or interact with them.