Many intellectual German got all caught up in the Nazi movement, including Martin Heidegger, the most important philosopher of the 20th century who still has great influence in the halls of academia today. Fascism emphasizes holism, and so the Nazis adopted all kinds of various historical strands from their past into their ideology. Hitler believed that he was the culminating representative of the Volksgemeinschaft. So some of Hegel’s ideas do indeed come into play for the Nazis even though they rejected his basic philosophy since it was too universal. Yet Hegel gave to the Nazis the cult of the state, and that man progresses through warfare (Darwin took Hegel’s philosophy of history and undergirded it with ‘scientific’ biology). Nietzsche was not a rabid anti-Semite, but he was not a friend of the Jews. Nietzsche hated Christiany far more and emphasized an existential will to power ethic which the Nazis adopted into their ideology. The Nazis also adopted Romanticism and much of Ernst Haeckel’s Social Darwinism. Hitler himself loved Arthur Schopenhauer, the original guru of natural existentialism and environmental ethics. Schopenhauer is very difficult reading, but Hitler could quote him verbatim. The SS itself loved the Aryan cult worship, but Hitler was far more political and secular.
Here: Inbred Science: Darwinism-Eugenics
As an agency making for progress, conscious selection must replace the blind forces of natural selection; and men must utilize all the knowledge acquired by studying the process of evolution in the past in order to promote moral and physical progress in the future.The nation which first takes this great work thoroughly in hand will surely not only win in all matters of international competition, but will be given a place of honour in the history of the world.Leonard Darwin, Presidential address, First International Eugenics Congress, 1912.