We must recognize the fact that many Nazis, Marxists and Fascists believe passionately in their fundamental rightness, and allow nothing to hinder them from their goal in the pursuit of their mission.
I guess my feeling is is that if you're going to make a joke, that's fine, but you should also sort of stand behind it, you know? A joke should be more than a joke, it should be a point that you're trying to make.
If you really want to write, then shut yourself in a room, close the door, and WRITE. If you don't want to write, do something else. It's as simple as that.