I think a lot about how the Nazis were voted into office. But that outcome wasn't inevitable—people could've made a different choice. Fascism is like a vampire; you must first invite it inside.
If memory serves, Hitler actually came in third, but the Chancellor was alarmed by the size of his minority so decided to bring him into the government thinking once installed they could control him. Instead, it legitimized him.
Enough people (a plurality) voted for the Nazis to persuade Hindenburg that he had to share power with them. It wasn't entirely an elite-driven phenomenon
A plurality of people also voted for various socialist and communist parties. It was a choice made by the people in power to keep letting them get away with it. Fascism has never had true popular support, just a system that they know how to game.