It's not just economics there. Weimar was a garbage fire from top to bottom, and that made extremist groups that promised to fix the nation actually viable. People are much more willing to vote for loons if everything is broken and no one has really done much of substance about it. In their eyes they have nothing to lose. A common thought then was "Maybe these nazi/communist/anarchist guys can fix things. They seem well organised even if they are a bit wacky. How could they make things worse? We'll just vote them out if they don't deliver the goods like we did the last guys".
> "In a decree issued on 17 February 1933, Göring ordered the Prussian police force to make unrestrained use of firearms in operations against political opponents" and (as mentioned in previous posts) the police were not the only armed paramilitary group in play.
One additional item of context is that there were many people (including Ezra Pound and Oswald Spengler) going about saying that WWI+depression had proved that the edwardian vision of progress and social democracy was broken forever, and something new needed to be tried.
Little did they know of what was to come.