What's the noun for Aryanizing? Here's the word you're looking for.
Aryan
(theosophy, Germanic mysticism, Nazism) A member of an alleged master race with no fixed definition, comprising people of Germanicdescent (in the narrowest sense), or all non-JewishCaucasians (in the broadest sense)
(ethnography, obsolete) A subdivision of the Caucasianrace, which comprised the Aryans, the Semites, and the Hamites, or the accompanying linguistic subdivision.
Aryanism
The ideological belief in the superiority of a defined Aryan race, particularly as an element of Nazism.
“Bonhoeffer stood against Nazism and Aryanism while German Protestant churches of the time accepted both as part of their belief system.”
“The fact that he came by the cult of Aryanism and anti-Semitism belatedly suggests that they developed as much in service to his artistic ambition as the other way around.”
“Thus, incredibly, according to Altman, anti-Semitism and even Aryanism are not connected to the core of Nazism but mere accidental features of it.”