Fascism is a tool for autocrats to keep public discontent and unrest down for a while, but it is temporary, and invariably results in purge after purge after purge. Eventually the state has to resort to war against outward enemies, and if it's not put down by assassination and revolution, it's put down when the Allies are bombing the capitol.
The people lose a lot harder if the Allies reach Berlin, which is why there are thirty-nine known attempts to kill Hitler, culminating in the July 20 Plot.|
Scabs exist, but they're expensive and universally hated by both sides.