Not to discourage further discussion, but you might be interested in this previous answer from u/commiespaceinvader:
New scholarship continues to address this question. THE GERMAN WAR, by Nicholas Stargardt, is based on the diaries and letters of ordinary Germans and has a chapter called "The Shared Secret," about knowledge of the Holocaust. At the most basic level, Jews were stigmatized, ghettoized, and then disappeared, their property taken by "Aryans." This was not lost on the ordinary German. Those who worked in the camps traveled through Germany, shopped and ate and mixed with the ordinary population. Stories got out. Konrad Jarausch's even more recent BROKEN LIVES concludes that far more ordinary Germans were directly involved in the Holocaust than many will admit, though perhaps not so many as others allege, but in all it was entirely common—"The largest group [of Germans] was nonetheless composed of ordinary Germans who witnessed the persecution without intervening and did their duty while aiding the war effort. The only exceptions were a small number of people impervious to NS [National Socialist] appeals or anti-fascist convictions, some of whom were active in the resistance. Almost all Germans were therefore in some way implicated, though many continued to claim not to have harmed anyone directly."