the people in game of thrones with harems are the villains, the people in anime with harems are the protagonists. If you haven't seen anime a lot then it's hard to explain how much more overt they are about fantasy fulfillment than in western TV. It's shameless, anyone who watches them will admit to this "guilty pleasure" that is the libidinal release of fascism. This is the major appeal of fascism to Liberals, the ability to drop the mask and all of the feigned concern and just be overtly, shamelessly evil. They still get what they want, the treats, but they no longer have to pretend they are blood-free and carbon-neutral. They no longer have to assuage the leftists or their own conscious. They get off on it, it's a guilty pleasure, and it's one that anime simulates.