I think for a lot of people, it's simply impossible to believe that people could be that cruel. Most of us have not seen and blissfuly have not lived through the horrors of World War II. I feel like this element, more than anything else, drives a lot of the nonsense views that the Holocaust or the wanton slaughter of people the Japanese deemed inferior is a made-up number or that it "wasn't that bad" and so on.

I remember when the Holocaust was being discussed in school and having to read books like Night in school and I was actually fascinated by this; the depths of good and evil that people can do are simply unfathomable. A British journalist wrote about the aftermath of the Battle of Shanghai when he visited what was once a densely packed suburb, "I saw only 5 Chinese, who were old men, hiding in a French mission compound in tears."[1]

[1]https://books.google.com/books?id=zNN6M97vYMEC&pg=PA70&lpg=P...