From what you are saying I take it that both Pope's Pius XI and Pius XII were indoctrinated by post war distortions of our history? How can that be when Pius XI, a pre war Pope, could be 'indoctrinated' by post war distortions when he arote his very clear encyclical regarding the Nazi regime.
Firstly he condemned certain excesses which he named. Secondly that time was rife with false atrocity propaganda which was circulated by the allies and the Jewish media. This was a continuation of the WWI demonizations of the Germans which includes such things as "they bayoneted infants to barn doors" and "used them for target practice". Most people in Europe believed this filth at that time. Many because they read in the newspapers. Do you think these Pius XI read the newspapers?
The distortions of German policies and behaviour never stopped and carried right through to the next war and continue today.
So answer your own question. Pius was condemning certain action which he was attributing generally to the whole of the NS. and most of which were in practice by a small percentage of the NS government and or military.
Pius XII was a political man. Where was his voice when during and after the war when the Russians and the Americans were abusing and raping tens of thousands of German women, sometimes to death on public streets? Where was his voice when the Allies were roasting Catholics alive in their basements with incindiary bombs?
Where was the Church of Rome when all of this depravity was being committed out in the open? For some reason it was silent. One might assume that these activities were compatible with Church teaching, considering that no objections or encyclicals came forth to condemn them.
The Vatican always had its intelligence services, do you think that they did not know what was happening?