The focus of Saul Friedländer books’s is on the sufferings of "the Jews" during WW2. That focus pushes the broader context of events in Europe too far into the background for these books to be accurate history. They become exercises in self-delusion due to the events they purport to elucidate being thereby removed from their proper historical context. This is the basic fault underlying most — if not all — consensus regurgitations of what passes for 'Holocaust' history.
Basically what Friedländer has done is perpetuate the unsubstantiated mythology of a mass-gassing extermination programme by documenting the uncontested development of racist prejudice, persecution and eventual arrest, incarceration, ghettoisation and removing from their homes of people of Jewish ancestry during an increasingly barbaric world war. But nobody with any knowledge of the time denies that THAT occurred.
Therefore, any honest person who genuinely wants to understand what actually occurred to Jews in Europe between 1941 and 1944 needs to read and engage with the alternative research and understanding. Currently that is not only discouraged but is punishable by ostracisation, demonisation, career-destruction, character assassination and even fines and imprisonment. E.g. Monica Schaeffer, Sylvia Stolz, Alison Chabloz, Ursula Haverbeck, etc.
That is anti-intellectual intimidation.
Any society that not only has such thought-crime anti-social behaviour, but boasts of and celebrates it, is in my view a corrupt and/or immature and/or repressive society.
And ironically that type of nationally sanctioned and enforced thought-crime policing is EXACTLY what the 'holocaust' narrative claims to be reminding people should "never" be allowed "again". Can you see the hypocrisy?