Responding to my own ears and heart rather than to his unfortunate politics, I too find Pfitzner's music beautiful, my favorite being his slightly wonky piano concerto! I also like "von Deutscher Seele"
I also prefer to keep politics and personalities out of the music: for example when listening to Wagner I do not hear the anti-semitic, self-indulgent, greedy, whining megalomaniac - I just hear incredibly splendid creativity from within a complex and flawed personality. Pfitzner's
Palestrina (1915-17) is a wonderful opera which should be more regularly staged...
:)