For much of the 20th century, politics was a battle between grand visions of the future. Communists, fascists and liberals sought to destroy the old world and build a new one in its place. Lenin, Stalin and Mao tried to dismantle the structure of human society, and to engineer scientifically something far better. In the process, they treated communities, families and human beings as mere clay, killing tens of millions of people while explaining that “in order to make an omelette, you need to break some eggs”.
Hitler and his minions employed even more ruthless methods in the service of even more ambitious plans. The Nazis aimed to remake the human animal itself, rather than just human society. They planned to re-engineer human biology, speed up evolution and create superhumans. Whatever you think about people such as Lenin or Hitler, no one can accuse them of being narrow-minded.