The Weimar Republic was devastated by Wall Street Crash of October 1929 and the Great Depression that followed. The Crash had a devastating impact on the American economy but because America had propped up the Weimar Republic with huge loans in 1924 (the Dawes Plan) and in 1929 (the Young Plan), what happened to the American economy had to impact the Weimar Republic's economy. Both plans had loaned Weimar money to prop up the country’s economy - especially after the experiences ofhyperinflationin 1923. NowAmericaneeded those loans back to assist her faltering economy.
After the Wall Street Crash, America gave Germany 90 days to start to re-pay money loaned to her. No other world power had the money to give Germany cash injections. Britain and France were still recovering from the First World War and the Wall Street Crash was to have an impact on industrial Britain. Stalin’s Russia was still in a desperate state and embarking on the 5 year plans. Therefore, an impoverished Weimar Germany could only call on America for help and she was effectively bankrupt by the end of 1929 and quite incapable of lending money.
Companies throughout Germany - though primarily in the industrial zones such as the Ruhr - went bankrupt and workers were laid off in their millions. Unemployment affected nearly every German family just 6 years after the last major economic disaster -hyperinflation - had hit Weimar.
September 1928 - 650,000 unemployed September 1929 - 1,320,000 unemployed September 1930 - 3,000,000 unemployed
September 1931 - 4,350,000 unemployed September 1932, - 102,000 unemployed January 1933 - 6,100,000 unemployed
Most, though not all, of the unemployed were male. These men were almost certainly family men who could see no way ahead with regards to providing for their families. Money was required for food, heating a home, clothes etc. With no obvious end to their plight under the Weimar regime, it is not surprising that those who saw no end to their troubles turned to the more extreme political parties in Germany - the Nazi and Communist Parties.