I'm not an expert on this, but I believe Nazism was more Romantic and anti-technological, which is why Heidegger joined. Nazism was like Trumpism, a populist revolt against the feminizing effects of democracy, liberalism, and capitalist and scientific progress. It was an antimodern revolt against civilization.
Positivism was a more pragmatic, humanistic movement that would have attracted orthopractic Jews like Wittgenstein. Hempel and Carnap didn't support the Nazis. Positivism was more self-consciously intellectual than Nazism. Most of the Vienna Circle left for the US and UK when the Nazis took over.
I'm not clear on exactly what you're asking, though.