But I can say this:
Fascism is always stopped. With two mechanisms:
1. Fascism weakens itself as much as its enemies. An ingroup and an outgroup are established, but the ingroup is further subdivided such that lower classes of the ingroup become new outgroups, cannon fodder.
2. Fascism always must expand. Fascism doesn't exist without an other, an enemy, to deliver pain and suffering to. Eventually it bites off too much and after much much suffering for everyone else, it finally dies.
5/x