Let's call a spade a spade. "Orc" is a dehumanizing term that the Ukrainian military propaganda invented and popularized to make it psychologically easier for their soldiers to shoot at Russians. Because they are not dropping a grenade from a drone on a human, they are just dropping a grenade on an orc, on a monster from a video game.

For Americans in the audience, "Orc" belongs to the same category as "Jap", "Gook", "Sandn**r", and all similar dehumanizing terms that American soldiers have used to make it psychologically easier to shoot and bomb their enemies.

I’m pretty sure it’s is a shortened form of Horcasitas, from Juan Vicente de Güemes Padilla Horcasitas y Aguayo, 2nd Count of Revillagigedo, the Viceroy of New Spain who sent an exploration expedition under Francisco de Eliza to the Pacific Northwest in 1791.

https://en.wikipedia.org/wiki/Juan_Vicente_de_G%C3%BCemes,_2...