Germany in 1932 was in dire straits, mostly due to their own failed bid for world resources, and fell in love with a party that promised everything, and had early success. The nazis crushed opposition, took over industry and the media, started their global war of conquest and very nearly succeeded. We are one major bank fail away from being faced with decisions that the Germans faced, too horrible to contemplate. The US also was suffering in 1932 with the crash of Wall Street, and only the attack at Pearl Harbor gave us some direction, or it could have been us. We are turning into the monsters we claim to fight. Men can be conditioned to kill others if they are convinced that the others are inferior they hate them, and spreading hate is always a prelude to violence. Just turn the news on and you will see. That is what the director was trying to illustrate.