The Psychology of the 20th Century

Psychology was in the middle of kind of an existential crisis. There was this rush to explain what happened, how modid an entire country go along with these absolutely horrific acts. The 19 sixties were also a time of white flight. This is the time when we're sort of constructing this myth of the psychopath. So why would we want create a second category of the human so we don't have to accept that regular people can also murder lots of other human beings and then come home and raise children and eat pot roast?