According to Prof. McKenzie, the problem is two minds in one skull. This is not multiple personality. It is the coexistence of the adult and the awakened infant minds.
Rage is proportionate to helplessness.
No one is as helpless as a baby when the mother must be away. Separations and frustrations later in life awaken that early rage. Since the mother was the whole world to the baby, says Prof. McKenzie, the rage is directed toward everyone. The Unabomber, for example, was hospitalized at age six months. Forty years later his lady friend left him, awakening rage that was directed toward everyone.