George Lincoln Rockwell, head of the American Nazi Party. His life story really is quite interesting and a great movie could be made balancing the reprehensible things he advocated and the man beneath, showing how he came to believe the things he did, etc. Seeing how much people seemingly love to watch detestable characters on screen now I think it could actually do very well.
I'll leave a (fairly long) quote from one of his books here;
"How does an American who fought the Nazis in World War II, who has a college education and is utterly dedicated to his country, wind up in jail after being attacked by a mob of Jews? How does a man who was looked upon for years as just a 'good guy', become a fanatical Nazi who stands up in public and advocates gas chambers for Jewish or any other kinds of traitors -- and admits he estimates about 80% of adult Jews will be found guilty of treason and have to be gassed? Why me? How had events turned me into such a one, but few or none of my fellows? Was I indeed 'nuts' and 'sick' as the Jews so feverishly insist?
That I was somehow different from most of my fellows seemed obvious, but how? Was I really a moral snake full of pathological hate, as charged by the 'normal' Jews? Or could I lay a valid claim to the apparently inevitable persecution of every advanced idea and of every truly great man Nature has produced in thousands of years? Why had I gone down to that mall to speak, knowing I might be killed or injured or arrested, knowing I would gain no money or even praise, except from a tiny few of my fellow 'oddballs'? Was my brother right when he charged that I would not do these things if I had a fine home and a yacht? Was I one of the disgusting dead-end fanatics I had seen in parks, shouting eternally some idee fixe through whiskers stained with tobacco juice, at more of the same pitiful creatures impatiently waiting only their turn to fulminate on nothing? Was I compensating for some unknown traumatic experience as a kid, as the Freudians would have it? Sitting alone in the nasty little cell, I thought back over my life and tried to discover a pattern, some clue to my motivation in going down to that mall to speak for what seemed a lost cause and in the face of what seemed the violent opposition of the whole world.
...In short, I am now fairly certain that the driving force in my life is a deep satisfaction in defying any overwhelming odds which seem to press against that which I will. In ordinary affairs, when there is no such challenge, I not only do not excel -- I am a positive flop. I cannot work up any real interest in having the best rock-garden in South Podunk, for instance and those things in life which depend upon being a dedicated cultivator of rock-gardens or similar normal accomplishments find me trailing happily at the rear.
On the other hand, in addition to this positive motivation for my activities, there is a negative hate -- a burning hate which alone can drive me to lose my temper, a thing I almost never do. Bullying -- the beating or torturing of an innocent or helpless creature by an overpowering creature or group of creatures, for the sheer pleasure of bullying and torture, drives me to a frenzy such that it is difficult to control myself.
The combination of these two overpowering drives from deep within me, I believe, are the underlying motivations which sent me down to the mall wearing a Swastika armband, ready to die if necessary, and dumped me, for the moment, in the smelly little cell in the basement of the Washington, D.C., Police Headquarters. I believe the same two characteristics, applied at this crucial and precise time in history, will propel me and our Nazi movement from that jail cell, up Pennsylvania Avenue to the White House. The world's longest half-mile!"