Brooks original column aside, conservative vs liberal viewpoints aside, he has a point.
This country is getting addicted to politics, outrage culture, echo chambers, what have you. Behaving in ways that allow us to feel smug and indignant and self righteous is not helping anyone and in a lot of ways we're hurting ourselves as much as we're hurting each other. Worse yet, these feelings are addictive as shit and when we get addicted to them we engage in behavior that reinforces and therefore perpetuates those feelings, which only exacerbates the problem little by little. Things need to start changing.