Us Against Them
This is an investigation of how tribalism affected the evolution of the human mind. The analysis reveals a process that beliefs, or ideologies, are a primary means of group identification and consequently became a natural component of the evolution of human thought and social organization. This has resulted in methods of thought and perception which divide groups into “us” and “them.” These processes are the result of a series of developmental stages of human society that began with rudimentary rituals and evolved into formal religion and ultimately modern political systems. Their effect on cognition results in "yes/no", or "all or nothing" decision making that causes people to reason and view the world in a polarized fashion. This strongly segregates groups by beliefs.
Us Against Them argues that the essential difference between the religious/conservative and the secular/liberal is driven by tribalism, not ideology. This is evidenced by the exclusive nature of conservative ideology that divides people into separate groups as evidenced by common features such as "you're with us or against us", "believers and heretics", "attack to defend", "the Patriot Act", and tax cuts for the wealthy as opposed to direct expenditures that affect all. Conversely, secular/humanism is the minimization of tribalism because its core belief includes all of humanity as members of the same group. Current affairs and politics are used as explanatory devices making the book relevant to everyday life. The book is written for the general public without technical jargon and is arranged as a series of arguments.