There’s “knowing” on a theoretical level, and knowing having experienced it. As the generational knowledge of people that have experienced fascism dies off the younger generations have to learn the hard way. Seems to happen every 100 or so years.
The idea of “European exceptionalism” is no different than the idea of “American exceptionalism”. People are fundamentally the same regardless of where they live – we all have the same base instincts, the same hard-coded tribalistic tendencies, and the same fears. Every population on the planet is susceptible to fascism because it preys on the aforementioned.
That’s what I’m running, though I had issues with it randomly requiring a reset. Installing OpenWrt fixed that problem.