germany under a fascist leader went from the poorest and weakest country in europe to the richest and most powerful in about a decade.
communism reduced the most powerful nation on earth into pretty much a bankrupt state, granted it took almost a century, but still.
And reduced Germany to rubble, even today when you go to their major cities most of their historical areas aren't really historical because the country was bombed back to the stone age.
Fascist states basically collapse after a few years because they can't stop themselves from picking a fight. It's like an idiot who gets drunk and thinks he's all hot shit and then runs around a nightclub hitting on every guy's girlfriend, eventually he's going to hit on the wrong girl and get his ass beat by a pissed off boyfriend. It's only a matter of time.