http://psychohistory.com/books/the-origins-of-war-in-child-abuse/chapter-7-child-abuse-homicide-and-raids-in-tribes/

Ritual sacrifice. High infanticide rates, incest, body mutilation, child rape and tortures. Child sacrifice and infanticide among tribal societies, Mesoamerica and the Incas; in Assyrian and Canaanite religions. Phoenicians, Carthaginians and other early states also sacrificed infants to their gods. Primary-process thinking, symbiotic omnipotence, gender/zonal confusion, splitting and projective identification, sado-masochistic disorders Reincarnation, salvationist religions, kinship systems, and economic reciprocity as counters to death wishes Striga, Madea, slavery, wars of extermination Because of the constant brutal abuse, all schizoid tribal personalities are so insecurely attached they are extremely uncertain about their genders, and most of their adult lives replay the early gender anxieties produced by their parental incest/rejection experiences. Families in preliterate cultures usually have separate spaces for males “in which the husband and wife live with their respective mothers and at night the man ‘visits’ his wife in her house.” Physical contact with wives is avoided, and separate sleeping areas are maintained by husbands. A gynarchy composed of the grandmother, mother and other females, brings up the children, so the boys have little contact with males in their early years and are thoroughly ambiguous about their gender. Archeologists have even determined that “there were no Neanderthal families to begin with since women and children lived in separate areas from the males in caves. Murderous raids are fought when “growth panic” becomes excessive, when new tasks such as building houses or expanding gardens threatens too much personal growth and after initiations when adolescents “grow up” and leave their mothers. As the Mae Enga tribe says: “When times are good, the men of the clan spoil for a fight.” The men designate Big Men who find a rationalization for fighting (Faked Provocation Phase), and the warriors go out to meet their opponents with massed chanting, insults and challenges. When no other clan can be found to raid, they raid their own clansmen.