Hey Jan,
Yes, the Nazism in Heidegger, I would argue, is a feature, not a bug.
The questions of being and nothingness as I see it go to his existentialist use of death to define a "why" in life, and yet when confronted with the Holocaust & the Atom Bomb he was more concerned with how it manifests a mode of thought which he disapproves of than with the slaughter of millions of people. In fact, he had argued for the slaughter of the Jews earlier: So, in a 1934 lecture when the Nazis were already persecuting the Jews, as Faye writers, “Heidegger suddenly calls upon his students to ‘find the enemy’ who ‘may have grafted himself onto the innermost root of the existence of a people,’ to ‘bring him to light, to face him, and to ‘initiate the attack on a long-term basis, with the goal of total extermination.’” And he had argued for National Socialism as a form of government that promoted a salvatory form of technology. So, basically, he is an important thinker whose small, perverted, egoistic, and prejudicial self utterly undermines his philosophy. But that is a subject for another poem
