" When people identify their own individualistic and sociophilic strivings with the goals of the group, they are subject not only to the benefits of group identification but also to its dark side: xenophobia, chauvinism, prejudice, and intolerance. They also exhibit the same thinking toward other groups that they show toward individuals within their group who have offended them. This involves such errors as overgeneralization and dichotomous thinking, as well as the fixation on “single-cause” explanations—seeing the outgroup as the sole cause of their distress, otherwise known as scape-goating. "

― Aaron T. Beck , Prisoners of Hate: The Cognitive Basis of Anger, Hostility, and Violence