Drinking milk and putting into political practice a eugenic form of Social Darwinism rooted in evolutionary theory are not exactly parallel ideas. By the way, Hitler used to drink hot milk with the mountain men that lived nearby his Berghof in the Bavarian Alps to sell the German folks the idea he was an authentic nature lover or ‘greener.’
I’m not arguing by analogy.
If Hitler liked milk does that say anything about the goodness and value of milk? Of course not.
If Hitler accepted the theories of evolution does that say anything about value of the theories of evolution?
Guilt by association.