Whereas medically experimenting on prisoners and torturing them requires a perverted and enormously cruel mindset
It also requires an enormously cruel mindset to make up those kind of stories.
The Germans carried out unspeakable atrocities, no doubt about that, but a lot of other stories about them are fiction.
I worked in London years ago, my brother introduced me to this old Polish bloke who rented out single rooms in his property, he was nicknamed 'Shingle Rooms'(he had problems with his false teeth apparently,when you rang his doorbell, he would open the door and say "you want shingle room") anyway, this bloke obviously had problems, he was constantly shaking and i noticed he had a circular scar about the size of a 2p coin on each side of his neck.
He saw me staring at the scars on his neck, he then told me about his experiences in a Nazi concentration camp, he said the Guards had rammed a red hot steel rod through his neck for no apparent reason.
His experiences were obviously the explanation for his present condition, he was a nervous wreck who always seemed agitated, he was also permanently on medication.
This guy to my mind was a genuine victim of Nazism but there are others who manufacture false stories about Nazi brutality in order to cash in on public gullibility about the events in WW2 Europe.