You think Gondor wasn't a fascist stat or at least closer to one than a democracy or whatever the hell we call the US? You think Rivendell had a Republican form of government?

To be clear, you're arguing that medieval monarchies were 'fascist' - or at least closer to fascism than to our collectivistic oligarchy? That's the very opposite of the truth. The United States is far closer to fascist Italy and Nazi Germany than medieval France was: it has a standing army, there is centralized government, worship of the state, etc.

Every fantasy media dating back a thousand years is a kingdom of homogeneous people sharing a history, bloodline, culture, ethics, religion, language, arts, etc.

That's just called civilization.