This documentary meanders a bit, but, it covers a lot of ground. AI has been used to narrate the work in the voice of Andrey Vyshinsky, the famous judge that oversaw The Red Terror and the Soviet team at Nuremberg, among others.
The piece also covers the Atrocity Propaganda surrounding 10/7.
The coincidental theory of jewsih identity I don't find compelling, but, it's there. Wrapping the pill in this way may be intentional to remove identity politics from the argument.
If I were to guess why no t4 personnel were chosen to perform gassing that had experience with gassing, it would be because THERE WERE NONE.
When dealing with the issue of Atrocity propaganda one needs to know some basics on social psychology and how people are influenced and manipulated. So there is basic psychology to be considered and then the works of folks like Edward Bernays, Edgar Schein, Robert Jay Lifton, Kurt Lewin etc. (And yes, they are). The next step is to look how governments and political groups apply that as well as this works on populations.
That said, you can ask Grok, Chatpg, etc. about it... Also asked them about Holocaust Religion, Erinnerungskultur and the effects thereof.