Not to mention Ordinary Men , the dynamic that makes your average citizens with no ideological indoctrination become the murderers of tens of thousands of Jews, to the point they'd shoot at small children with a clear conscience. They'd even have the option not to directly take part in the murders, but still do.
Again, these were average, ordinary people. No strong party affiliation, SS membership or anything.
The fact that Christopher Browning's book was a revelation when it came out shows how little we've learned from WWII. We might have put the lid on undisguised antisemitism, but we have merely channeled its otherising roots elsewhere. Otherwise, we wouldn't find it so easy to turn a blind eye to the settler colonialism happening right now in Palestine.