More like the center-left SPD failed to respond to the depression well (i.e. govern properly) and made alliances of convenience with the right and the Nazis to marginalize and ban Communists along with anyone else on the left.
That's how it's going to happen in the US, too: The governing center/center-left party expends all of its effort attacking the left, and becomes completely ineffective at governance through incompetence, corruption and self-dealing, losing the support of the voters. The far-right (rising in popularity) eats into the center-right through direct targeting of individuals and the rewards of conversion to a movement currently rising in popularity. Eventually a charismatic far-right speaker starts giving popular speeches indicting the corruption and incompetence of the governing center, probably during a deep economic crisis, and insisting that this corruption and incompetence is disarming the country in the face of the real existential threat that everyone from the far-right to the center-left agrees upon, which is the left. And the left is actually covertly foreign-based, funded by powerful Jews and enemy governments, so their opinions are actually a form of invasion. So we need to cleanse this country of the traitors, then take the fight to the countries that supported them.
That's how it's going to happen in the US, too: The governing center/center-left party expends all of its effort attacking the left, and becomes completely ineffective at governance through incompetence, corruption and self-dealing, losing the support of the voters. The far-right (rising in popularity) eats into the center-right through direct targeting of individuals and the rewards of conversion to a movement currently rising in popularity. Eventually a charismatic far-right speaker starts giving popular speeches indicting the corruption and incompetence of the governing center, probably during a deep economic crisis, and insisting that this corruption and incompetence is disarming the country in the face of the real existential threat that everyone from the far-right to the center-left agrees upon, which is the left. And the left is actually covertly foreign-based, funded by powerful Jews and enemy governments, so their opinions are actually a form of invasion. So we need to cleanse this country of the traitors, then take the fight to the countries that supported them.