We talked about this some time ago in the Gamergate thread but orcs are not coded black in Warhammer 40k, Dungeons and Dragons, the works of JR Tolkien, Magic the Gathering, EverQuest, Shadowrun or World of Warcraft. That Will Smith sci fi thing Netflix put out a few years ago had some cholo orcs I think?
I've sat at some tables where gamers have said some incredibly foul racist and/or sexist shit including the bizarre and scatological. I've played some Vidya. Orcs = blacks is not a thing. The only way you get there is if you mentally equate violence, aggression and tribalism to black people which makes you the racist. I'm sure in WoW someone has used the N world in sentences to describe members of the Horde but that is just people being edgelords unable to resist the most naughty of words. Orcs aren't stand ins for black people.