"Still, give Conan the Barbarian credit for not presenting these hordes as swarthy, ethnic caricatures à la The Lord of the Rings" Tolkien wrote "The Hobbit" in 1937. The "caricatures" you write about were described as "of human shape, of varying size but always smaller than Men, ugly, filthy, with a taste for human flesh. They are fanged, bow-legged and long-armed, and have dark skin as if burned." The movie depiction of Tolkien's orcs were accurate to the original source. If there was racial sterotyping going on, it was the work of Tolkien. I suppose Peter Jackson could have changed them to blond hair, blue eye Nordic types to please folks like you.