Understanding the mysterious intensity of conflict in American politics today. Rights and Rules … Tribal moralities in conflict in e pluribus unum … “In this chapter, we’ve considered six psychological tendencies that exacerbate intertribal conflict. First, human tribes are tribalistic, favoring Us over Them. Second, tribes have genuine disagreements about how societies should be organized, emphasizing, to different extents, the rights of individuals versus the greater good of the group.