The media do their traumatizing bit, rubbing our noses in violence. And that doesn't count the national news, which seems addicted to violence. As children, we head to school wanting to cooperate and create. Trauma is a mechanism of control used by a dominator model, a control paradigm. When, for instance, a powerful adult hits a helpless child, the adult is using power to create trauma for control purposes.
Oppressive bosses use the same method, though the tactics differ.
Our society has become so accustomed to dominator methods that they've become accepted, and the control paradigm behind them has become invisible. In other words, trigger the trauma and the feelings of helplessness that went with it, and then turn the resulting anger into hatred for some enemy or into a vocational drivenness that translates into worker exploitation, polluting the world, or deceiving the public, just so it also translates into greater profits and power. Daily traumatizing can also create the helpless victim, the second, lower tier of society. If we can respond to the trauma, then we learn effectiveness. Our sense of selfhood becomes more secure and confident.