It's easiest, and for short attention span Americans particularly, to assume the Holocaust was 'bad', but 'probably exaggerated'. Getting 'woke' to the industrialized mass murder of millions of men, women and children is hard to conceive, psychologically disturbing, and can only be firmly grasped with hours of reading and education. There is no point in teaching history of America or the world without a deep and thorough education on the Holocaust.

In 'Salvaged Pages' by Alexandra Zapruder, a compilation of recovered diaries of young Jews, mostly in eastern Europe, and mostly writers who disappeared into the death camps of Belzec, Sobibor, Auschwitz and Treblinka, the diary authors themselves are never completely certain the 'deported' are actually going to be killed. They could not conceive of killing on that scale. This is even though, in these eastern areas, from Poland to the Baltic states, every Jew was witness to roundups,  peremptory street executions and mass murder of hundreds by bullets, outside their villages and cities by Germans. They were also aware and exposed to the virulent dehumanizing Nazi race propaganda that blamed everything from the war to food shortages on Jews, used as 'justification' for abhorrent crimes.

Uyghurs Concentration Camps and massive breadth of work internment revealed

https://www.theguardian.com/world/2020/sep/18/clues-to-scale-of-xinjiang...