Well, i was going to say something about how grey is actually a combination of black and white particles, and if we break stuff (ww2 nazis, the galactic empire, whatever) down we actually can actually see there were a lot of grey peeps there, and if we break all their motives and actions down we can get actually get black and white. There were people who actually believed the evil propaganda of evil, and there were people that had no choice but to work with them. They did bad stuff for a (from a personal standpoint) good reason, people that did bad stuff for bad reasons, people that refused to do bad stuff for bad reasons, refused for good reasons, a combination of those. ESPECIALLY a combination of those. But we're breaking stuff down to the most basic level, where action A is bad, action B is good, so we don't care about combinations, it makes the bigger image change color, not the particles. That means that everything IS black and white (from an even wider point of view). But in practice it looked like this: Oonga boonga black people are bad.
so enjoy the short version