In "It Can't Happen Here," Sinclair Lewis explores the notion that widespread dissatisfaction can inadvertently bolster centralized authorities. He describes how people's general discontent can be a source of energy for supporting a totalitarian regime, even when they may not agree with its individual policies or actions. This paradox demonstrates the potential for authoritarianism to thrive amid public frustration.

The author highlights a psychological dynamic where individuals, feeling unfulfilled or marginalized, may rally around a strong central power. This "congested idealism" reflects a yearning for stability and direction, which can lead to the acceptance of an oppressive government. Thus, Lewis warns of the dangers inherent in allowing personal grievances to align with the ambitions of centralizing forces.