As a Jewish boy growing up in an Anglo-Christian country like Australia, I often reflected on my parents’ horrific experiences in wartime Poland. I remember being fascinated that, in modern times, in the heart of the civilized world, innocent men, women and children could be slaughtered by inhuman thugs while ordinary people looked the other way. However, what happened to my parents and their fellow European Jews never really frightened me, because I felt it could never happen in a place like Australia. “That could never happen here,” I would tell myself. “Australians are too decent. We’re all Australians here,...