Sure, I’m not trying to make the argument of the OP, just clarify it because I do think it warrants consideration.
Regarding the role of shame in the rise of fascism (and the NSDAP). I agree it played a role, but I would characterize that as an (all too successful) exploit of human psychology.
My opinion is that “shame” as a basic human emotion does perform an important function in our social fabric, and trying to inoculate ourselves against it en masse is not without its downsides.
The argument is plain wrong. Fascism and nazism were driven by fear and shame from day one. You can find transcriptions from early talks from the dictators and others.