The Nazis weren't unique in dismissing categories of research on ideological grounds. The USSR label of "bourgeois pseudoscience" [1] was applied to various fields like evolutionary biology.
We aren't immune to it now. In the software world, remember that Ballmer called Linux a cancer, and in general there is a meme amongst capitalist software developers that the GPL is a cancerous or infectious license. In academia, there is always a question of where the funding is coming from, or how some research output can be monetized, and so there is an inherent bias against research which doesn't offer hope of capitalist and military-industrial dividends.