In the absence of - intellectual - polarization, we are witnessing the growth of the ugliest kind of divisiveness or - existential - polarization, if you will; pressure-group warfare. The country is splitting into dozens of blind, deaf, but screaming camps, each drawn together not by loyalty to an idea, but by the accident of race, age, sex, religious creed, or the frantic whim of a given moment -- not by values held in common, but by a common hatred of some other group -- not by choice but by terror.
Ayn Rand 1971