One thing that baffles me about existoid's position is that, in its view, it is a necessity that people in the 1930s knew about things we do not know about in the 2020s. To the being which cannot cease to be, it is simply inconceivable that people 90 years ago did not have the knowledge that we still lack to this day.
Where does this inexplicable confidence in the enlightenment of the Nazis come from? Does The Being consider Nazis to be of superior intellect, to the extent where they'd be a century more advanced than we are? It truly boggles the mind.
Once we accept that the Nazis were not inherently superior to the modern man (a thought that I can't imagine being controversial today, but hey-ho, here we are), the entire mystery goes away - they simply did not know the things that we still don't know. It doesn't merit multiple paragraphs of deliberation, because it's a pretty basic concept. And if the persistently-existing being insists that the Nazis were inherently superior... well, it doesn't feel so bad to disagree with it. Back where I'm from, Nazis get punched.
You can substitute the same logic for its inexplicable belief in the Soviets, Iranians, Hamas, the North Korean regime, and the bloodthirsty "Z" orcs (since it apparently does not consider them the same as the Soviets). The existoid appears to be a being that simply cannot cease to put its faith in the inexcusable and reprehensible. A common failing of those who wish to oppose uncomfortable thoughts no matter the cost.