Is it? I dunno, honestly. Obviously it's dehumanizing, but is it actually racist? I don't think this counts as a racial slur, it doesn't have the history, but I also don't know enough orc lore to argue. Seems more like a nerdy version of calling people barbarians...
Either way as a Russian I've waited long enough for us to get our own n-word analogue that only we get to say.
The tweet .
In the same way "mayo" is racist I'd say, but it's acceptable bc of the centuries of geopolitical supremacy by English ghouls. In the context of calling Russians *rcs, it's way less acceptable imo (disclaimer: i am a politically illiterate westerner)
Edit: i also don't think the use of "mayo" against whites is racist for the same reasons it's ok to call the British ghouls, plus it's fucking hilarious
I guess it's fair to say there have been a couple centuries of Russian geopolitical supremacy in the region.