Wat wa 1 reason that totalitarian dictatorships gained power in europe between world war 1 n 2?

After WW1 and WW2 the governments were sent in to a period of unrest. Not only were people shocked over what had happened but the financial repercussions were grave. People wanted the governments to do something, and when they didn`t seem to solve the problems, the more extreme sides gained more support in the peoples desperation.