It is completely unreasonable and delusional to believe that something like National Socialism could never happen again. It already happened, and tens of millions of people supported it unconditionally. Give the White Western masses a man of Hitler’s intensity and intelligence, and those people will likely rewrite world history once again.
I don't know that I'd identify a Hitler figure as the necessary precondition to this
The necessary precondition to Nazism is a centuries long authoritarian military tradition, a disastrous war that lasts for years that almost every male participates in and kills 20% of them, and then harsh global retribution and economic instability.
