The difference between democracy and dictatorship is like a ceiling light versus a flashlight. The ceiling light won't shine evenly everywhere in a crowded room, some places might get less light and some places might be too obstructed to get any light at all, but all in all the room is brighter. Whereas with a flashlight you can point it at any part of the room you want and illuminate it, but the room as a whole isn't as bright.

I can feel my political understanding get better already. In taking this analogy seriously, I have come to understand that democracies ... uh ... huh. What is even the point here?

Activating my lib-O-vision, I interpret this as saying that democracy leads to less efficient decision making due to the overhead of including everyone (the bit about some parts getting less light and some none at all) but everyone ultimately benefits (the entire room being brighter). Dictatorship has more efficient decision making because it's only one person calling the shots (the place the flashlight is pointed gets very illuminated), but only a small part of the room (the dictator's favored) gets illuminated by the person holding the flashlight (the dictator).