The Party told you to reject the evidence of your eyes and ears
you can't assume someone is a Nazi just because they volunteered for the Nazis and served in a Nazi division and views his time under the Nazis as the pinnacle of his life! If you think he's a Nazi just for doing that then you're the real nazi
Even if this were true, if someone somehow Mr. Beaned himself into the ranks of the SS without supporting the nazis, why would you ever feel the need to defend them if you were not yourself a fascist? Surely there are better things to do online.
In a speech to the soldiers of the 1st Galician division, Heinrich Himmler stated:
Your homeland has become so much more beautiful since you have lost – on our initiative, I must say – those residents who were so often a dirty blemish on Galicia's good name, namely the Jews ... I know that if I ordered you to liquidate the Poles ... I would be giving you permission to do what you are eager to do anyway.
It's insane to me that this is the moment they decide that an issue is complicated with more than one side to consider. It's never homeless, imperialism, or over policing. It's always Israel, Nazis, and landlords.
Remember when the arguments were more "Just because you were a Nazi soldier doesn't make you a Nazi, what choice did many have? It's not like they were members of the SS!". Miss those days. The dude volunteered to attack his own people, to murder and wipe out his neighbors. There is no forgiveness.
That liberal is the exact same kind of liberal to chant "the only good (slur here) is a dead (slur here)" when it comes to the enemies of the hour for the ruling class, in this case Russians.