The banality of evil thesis is not just a psychological observation. It connects to Arendt's broader political philosophy in important ways.
In The Origins of Totalitarianism (1951), Arendt analyzed how Nazi Germany and Stalinist Russia were not simply extreme versions of conventional tyranny. Totalitarianism was genuinely new: it attempted the total transformation of human nature itself, eliminating the distinction between public and private life, between state and society, between the individual and the political system. Its most devastating tool was the destruction of plurality, the human condition of being among others who are genuinely different from oneself, whose perspectives and judgments matter.
Arendt's concept of plurality is one of her most important contributions. She argues that the human condition is fundamentally characterized by plurality: there are many of us, we are each genuinely different, and this plurality is not a problem to be managed but the very condition of politics. Genuine political life is the space in which genuinely different people deliberate about shared concerns, and this requires that each person bring their own distinct perspective, voice, and judgment to the table.
Totalitarianism destroys plurality by making everyone an interchangeable function of the system. It eliminates the space in which distinct persons can speak and act as themselves. It replaces judgment with ideology, plurality with uniformity, political action with administration. And when plurality is destroyed, what remains is exactly the condition that produced Eichmann: individuals embedded in a system, executing functions, unable or unwilling to step back and judge.
This is why Arendt's political philosophy is so insistently anti-systemic. Good politics, for her, is not a well-designed system of rules and incentives that produces good outcomes without requiring much of its participants. It is the ongoing, demanding practice of genuinely plural deliberation among people who show up as themselves, exercise genuine judgment, and refuse to hide behind institutional roles or procedural cover.
The concept of action is central here. Arendt distinguishes between labor (biological necessity, keeping alive), work (making the durable world of objects and institutions), and action (genuinely political activity, speaking and acting in the public realm in ways that reveal who you are). Action is the most specifically human of these activities, and it is the one that totalitarianism most completely destroys. When people withdraw from action, into private life, into bureaucratic function, into passive consumption, they surrender the political capacity that makes free societies possible.
The practical implication is uncomfortable: Arendt's philosophy puts enormous demands on ordinary citizens. It is not enough to vote, pay taxes, and follow the law. Genuine political life requires showing up as a person, exercising judgment, engaging with people you disagree with, and refusing the seductions of ideology and procedure that allow you to outsource your thinking to a system. In an era of passive media consumption and tribal political identity, this demand feels more urgent, and more difficult, than ever.