Sadism. That's what nazism was/is. It's no fun on the eastern front if there's no one left to torture. Hitler allegedly said "if Jews didn't exist we would have to invent them." The quote has been disputed, but it's telling that neo-nazi websites repeat it frequently, then follow it up with, "who would want to invent Jews?" The reality is: A lot of people who suffered severe physical, sexual and psychological abuse as children in places like rural Germany, modern Russia and Plano, Texas, are pathologically incapable of stopping themselves from taking their abuse out on others. That implies their ability to justify being monstrous sadists, on top of lying and gaslighting people into believing flat-earth theory or conspiracies about stolen elections. This is the kind of generational psycho-sexual abuse that leads to people applauding policies like "keep 'em [**racist terms**] alive so we can torture them to death."
Just want to say here, Frankl was trying to keep people alive to keep them alive. Inept as that may have been. There's a huge difference between that and getting your jollies by wanting to torture people... and only people who want to torture people would want to draw a similarity between those two things.
The problem is not ineptitude. He rejected their self evident wishes for a death they chose, revived them and subjected them to torture and experimentation that Mengele might approve of. I wouldn't wish the experience of having your head drilled open for cranial drug injections on my worst enemy. He's a torture porn peddler glorifying suffering instead of alleviating it, like Teresa of Calcutta.
No. There's a vast difference between cutting someone's head open to save their life because they'll be dead otherwise, and doing it to a totally okay, healthy living person with the intention of killing them.
Afaik, by all I read, Hitler was completely genuine in his anti-semitism. And also, the explanation of nazism as being caused by unique levels of child abuse in rural Germany would be novel one.