How did economic depression allow the rise of totalitarian leaders and dictators?

German in the its golden years (Stresemen's Recovery) "1924-29" had adopted many diffrent schemes such as that involved borrowing money from America, but when the wall street crash of 1929 took place America needed all it money back which plunged German into a Depression, there were no jobs, there was no money and people were desperate for food. Things were looking very bad for Germany and its people, when after his spell in prison and writting his book "Mein Kampf" Hitler with the Nazi party came back and shone a light of hope for the people. He had a new tac-tic, insted of using extreme violence like he did before he decides to use a more polictical approach but still keeping most of the parties aims, he offered free food, More jobs and promised a better life for all Germans. This enouraged the German people to vote for the Nazi party, Also usally in time of extreme circumstances people vote for extreme parties because although radical styles are used they usually pay off.