Thanks for the question. So if you listen to the podcast, or better yet read the book, he explains how Nazi idealogy was really born out of German existentialism and romanticism, which places a great emphasis on nature and “balance.” This shows up in the Germans desire to be connected to the Fatherland, fascination with the Black Forests, fascination with animals. They saw the Jews as disconnected from any land and therefore not living authentically and therefore not worthy of life. The way they distrusted society meant they needed to be done away with as a means to restore order and balance to Nature. The fascination with oak trees is also interesting. There is a god in German mythology that represents the oak. They planted oaks after killing Jews in camps or planted Lupen flowers aka wolf flowers where Jews were buried. Hitler loved wolves. They passed legislation for sustainable development long before it was popular.