Jewish populations have always had enormous effects on the societies in which they reside because of several qualities that are central to the Jewish group evolutionary strategy and likely have been under genetic selection in Ashkenazi Jewish groups: First and foremost, Jews are ethnocentric and able to cooperate in highly organized, cohesive, and effective groups. Also important is high intelligence, including the usefulness of intelligence in attaining wealth, prominence in the media, and eminence in the academic world and the legal profession. I will also discuss two other qualities that have received less attention: psychological intensity and aggressiveness, and finally mention the Jewish guru phenomenon.
The four background traits of ethnocentrism, intelligence and wealth, psychological intensity, aggressiveness, along with strong charismatic leadership result in Jews being able to produce formidable, effective groups—groups able to have powerful, transformative effects on the peoples they live among. In the post-Enlightenment world, these traits influence the academic world and the world of mainstream and elite media, thus amplifying Jewish effectiveness compared with traditional societies. However, even before the Enlightenment Jews have repeatedly become an elite and powerful group in societies in which they reside in sufficient numbers.
It is remarkable that Jews, usually as a tiny minority, have been central to a long list of historical events. Jews were much on the mind of the Church Fathers in the fourth century during the formative years of Christian dominance in the West. Indeed, I have proposed that the powerful anti-Jewish attitudes and legislation of the fourth-century Church must be understood as a defensive reaction against Jewish economic power and enslavement of non-Jews.[1] Jews who had nominally converted to Christianity but maintained their ethnic ties in marriage and commerce were the focus of the 250-year Inquisition in Spain, Portugal, and the Spanish colonies in the New World. Fundamentally, the Inquisition should be seen as a defensive reaction to the economic and political domination of these “New Christians.”