How do Thomas Mann’s Joseph novels challenge Nazi irrationalism?

Thomas Mann’s Joseph and His Brothers challenges Nazi irrationalism by serving as a deliberate affirmation of humane civilization, reason, and individual responsibility.1

In the tetralogy, Mann reinterprets the biblical narrative to depict the emergence of "mobile, responsible individuality" out of the "timeless collective" and the transition from myth to history. While the protagonist, Joseph, initially views his life as a reenactment of myth, he eventually enters the world of change and history, where he learns to manage events and ideas through conscious, intelligent activity.1

By emphasizing this development, Mann contrasts the potential for human growth and rational self-governance against the "barbaric primitivism" and ideological manipulation favored by the Nazis. The novels’ spacious, humorous, and serene tone acts as an implicit rebuttal to the inhuman fanaticism of the era. Ultimately, Mann intended the work to provide a modern myth capable of sustaining his generation and restoring a belief in the power of humane reason, directly opposing the nihilism and irrationality that undermined traditional humanism.1