The Nazis took control because of a Splintered Left into multiple factions while the Right was united. The Nazis came for the communists first while the moderates watched, because the communists and moderates were almost as much each others enemies as the Nazis were.

So exactly what is happening now? History is repeating, undesirables are being rounded up and the fascist dictator in charge of it has invaded a nearby country.

Surely if the Jews had only protested peacefully the Holocaust never would have happened.