Pius XI in 1937 read Nazi language as a Christian heresy borrowing the lexicon

Evidence

Can such an attempt be compared to the attempt to establish an elusive and ultimately psychotic “purity”? Interestingly enough, an early testimony both to this “cleansing” attempt (and perhaps to its failure, as well) was voiced quite early on by a Catholic theologian, Pius XI, in his famous 1937 encyclical entitled Mit brennender Sorge (With burning concern). The pope expressed his opposition to the “secularization” of Christian terms such as “revelation,” Offenbarung, “faith,” Glaube, “immortality,” Unsterblichkeit, and “grace,” Gnade. Such distortion, he complained, “can only be intended to confuse or worse to do evil.” If Hitler “doesn’t want to be a Christian,” Pius wrote, “he should at least refrain from enriching the language of his heresy with the Christian lexicon.” — Gil Anidjar, The Jew, the Arab, 676

Categorization

• QUESTION: Why would a Catholic pope frame Nazism as enriching its heresy with Christian vocabulary — a striking inversion of the usual sacralization-of-politics claim?
• XREF: Connects to the Frankfurt School volume on how totalitarianism and religion interlocked — Pollock, racket theory, Adorno on fascism and theology.