Star Trek: Patterns of Force

In Patterns of Force, an ambassador from the Federation is supposed to go and watch what's going on on a planet. Instead he says that it would work better than what they got going on now? Fascism. It turns into a full blown Nazi planet with people from a different planet who are persecuting and killing. And you know, the lesson is that fascism really isn't nice,. It was you Yeah. You also can't take parts of it. That it's all of a piece.