There are many comments here about the left and the right ends of the political spectrum.  When I was much, much younger, I used to think that political spectrum was not a straight line, but a circle.  As one moved further and further away from the "centre" in either direction, one would get more and more repressive policies.  They might have been based on different motivations, but each were repressive oil their own way.  Eventually, the left and right would meet at the other "side" the circle in a place of complete intolerance of dissenting opinion and total control over public "debate".  At that point, the original motivation was largely irrelevant because both arrived at the exact opposite of an open, tolerant society.  Maybe I wasn't so naive after all...