George RR Martin’s books don’t have a single role model character, and life is not like that either, so it is funny to hear him complain about that. But also, you must realize that Tolkien was writing an allegory if a sort, with the orcs representing the devils. And if you read Tolkien’s appendixes you will see that orca are actually elves twisted by Saurons master Morgarath, so in reality, they are not even a real race.
