I remember years ago, back in my uni age days (so, FAR too many years ago,

) playing with a DM who depicted his orcs as First Nations (well back then, that wasn't the term we would use) people defending themselves from the colonial forces. It was a real eye opener and not something I'd ever even considered before. Just wasn't part of anything I'd read in fantasy or any of the D&D books or anything. I was playing a paladin in the game and it became are fascinating game of how I could reconcile this character who was created using the more or less bog standard tropes of the game with this very on target depiction. It's a game that ended far too early and it's something that I've always remembered.
It really did open my eyes, all the way back then, and this would have been in the early ish 90's, to just how ingrained the racism of the game really is. Once you've seen it, it's practically impossible not to see it throughout so much of the game.