After the fascist and Nazi regimes were defeated in 1945, European post-war historiography largely overlooked right-wing extremism. New research now shows how extremists rebuilt cross-border networks in Europe and the part Switzerland played.
For more depth on the usages of Fascism and it’s history, context etc. see this link about this new book. Facsism" by Princeton History Prof Federico Marcon.
The faster we recognise it, the better we can counter it.
The largest denominator for progressive movements is the hate of men. Alienating 50% of the population will send them straight into the arms of something else, in this case right-wingers who tell them “we’ll take care of you, you are not at fault, this is a safe space for you, foreigners and queers are to blame”.
If progressives instead made the rich the boogeymen/scapegoats and were a unifying force instead of a divisive force based on multifaceted ideological purity, we’d have a strong counterweight to fascists, nazis, conspiracy theorists, and their ilk. Unite under “Tax Wealth, Not Work” and maybe we can defeat them.