In 8th grade when I remember learning about the holocaust, my teacher said that the Nazis did such cruel stuff to Jews that even the crazy Japanese (and something about how the Japanese had similar brutality or camps) said that was disgusting.
Hiya!
So, there's not actually a question in there. Could you clarify what you're asking about, please? Certainly, Nazi Germany committed absolutely horrific atrocities within the context of the camp system - and an atrocity has to be pretty horrific to stand out from a system designed for the industrialised slaughter of ~3 million Jews.
(To head off the inevitable question, of the ~6 million Jews that were murdered by Nazi Germany in the Holocaust, a great many were not murdered through the camp system, but rather through the operation of the SS Einsatzgruppen, who operated behind the German front line in the East, carrying out mass executions of 'undesirables' - Jews, 'communists,' and so on.)