I think an important part of understanding how strong communities stymie fascism is understanding how fascists use corruption to get buy-in. In a society with ascendant fascists, the fascists find as many ways as possible to reward those who take fascist action. Classic examples include things like giving favorable jobs to those that sell out their coworkers, even to the point of directly giving the accuser the vacated job of the accused. Regular people become incentivized to buy in to the regime because they are complicit through the spoils system. That all works a lot better if you have a society with widespread precarity. If you have high unemployment and lots of people in substandard or no housing, if you have widespread underemployment among the educated, if trades people can't practice their trade, etc, there's a great deal more vulnerability to this kind of systematic regime of totalizing fascism.