National Socialism is a philosophical/political worldview and an expression of Universal Order. A fundamental aspect of Universal Order is cosmic law/natural law/Dharma, or in more simple terms, "might is right", the rule found in nature.
What I think you're missing is that Christianity in any form, Orthodoxy, Roman Catholicism, Mormonism, Protestantism, or any revisionist fringe sect of Christianity (all forms of Christian Identitarianism) are inherently opposed to Cosmic Law and are an affront to Dharma. You need to realize, although Universal Order is most simply "the way things are" in the Universe, cosmic law is inherently anti-egalitarian, and National Socialism is only for Aryans, and thus any belief held by a National Socialist must be entirely Aryan in nature.
The above paragraph is where you seem to be encountering a disconnect that I often encounter in Christians that desire to call themselves National Socialist. Christianity and all other Abrahamic religions aren't Aryan in origin. They're from a region of the world filled with nonewhites, specifically semitic peoples, which include Jews (the ethnic group inhabiting the region of modern day Israel, previously divided into Judea, Edom, Israel, and some smaller kingdoms), Palestinians, Arabs, the Lebanese, Jordanian, Marsh Arabs, Iraqis, etc. It is individuals of this racial category that came up with the Christian, Jewish, and Muslim religions, thus making them foreign to our race. The thought processes and mindsets of these peoples shaped Abrahamic religions, and therefore they are inherently semitic, not Aryan. Our religions, on the other hand, have always been a reflection of the "might is right mindset", and this is evident in ancient Aryan cultures which had entirely different morals than semites that followed Abrahamic religions. The Rigveda, for example, is a mythologized account of a historical event, the Aryan conquest of India via the use of the chariot, an Aryan invention.