I addressed Christianity, now let me address "ethno-Nationalism" from the perspective of someone who comes from a country and studied the history of why it failed. The two largest groups were obviously Afrikaners and English. The Afrikaners were split into two camps, the Boer descendants who were the majority, and the Cape Dutch descendants, who were cucks who accepted British rule and were happy to be ruled by them, 23000 of them fought for the English during the Second Anglo-Boer war. The English being the under Jews, deployed a tactic of eroding the differences between these two groups, The Boer people were a blend of Dutch, German, and Huguenot, they were freedom fighters and rebelled, who endured a great ordeal called the Groot Trek to found their own nations. As such they had a separate identity, in fact Kruger stated in an interview that Cape Dutch would be banned from entering the ZAR because they would take our jobs. The English invented the term Afrikaner, to unite us, and in the end to diminish the Boer and make us docile. It was an attack that would succeed after the British took control, destroying the separation, leading to destruction of the ethnicity, to create a fake one. The Cape Dutch descendants became the heads of the NP and HNP, no longer Boer descendants, and the ignorant and uneducated followed them because they were white and Afrikaans-speaking, right into their fall.
Then there's another issue, which the English. We allowed to English to stay, those who were taught to hate us since a very young age. I harbor deep resentment towards them, but I wasn't raised that way, it stems from my grasp of history and my experience of them as a child, where English children would regularly make jokes about my ancestors in concentration camps claiming their great grandfathers told them they fed them bread with glass in it for sport. Now you have two populations who have to live together, who hate each other and have nothing in common except their race. This did not work, the English worked with the niggers and the Jews, out of spite and because they felt more affinity with England than South Africa, which is why the term Soutpiel is appropriate, they could never be South Africans because to them it was a colony they had the misfortune of being born in, obviously there were some exceptions. They eventually convinced the Cape Dutch onto their side, and secured a small majority in ensuring niggers had the right to vote. The rest is history.
Ethno-nationalism requires a deep understanding of what and who your tribe or volk are. Unfortunately we failed at this after the Second Anglo-Boer war, which resulted in our current fate. Ethno-nationalism needs to be predicated on more than just race and language, but also religion.
Fortress of Lugh had a good video about the ethnos in which Celts and Germanic peoples lived. Civilization was an import, and it wasn't necessarily an indication of what we commonly perceive to be civilized. Countries are a concept that are problematic, because they confine a people to a nation or a state, which cannot contain a people, this the true meaning behind the Reich. It extended beyond the borders of Germany, and there was a place in it for other Germanic peoples, for the Dutch, for the Flemish, and for the Scandinavians. And what do they have in common? Genetics and they were each Germanic before the Christianization came. Even today, you will see that the Dutch and Scandinavians vote together as a bloc against EU increases, even in their most retarded forms. These people are a folk made of multiple tribes, they need to develop in tandem, but separately, so that their can be contrast to one another, so that they may compete and refine. Christianity is not natural to Germanic peoples, it is a desert religion that conflicts with the worldview required for us to excel, and because of this we will always fail as long as we are confined to it.
The ethnic policy of the future National Socialism needs to learn from South Africa that it's not just race, and it's not just language that constitutes a folk. For all intents and purposes the Germans considered us their folk, and we considered them ours which is why there were more Ossewabrandwag members during WW2 than there were soldiers fighting for the allies. From across the seas on the other side of the ocean we were summoned to align with our kin, we felt the pulse of the German Reich, not the Dutch monarchy or the British empire. But we could've done it much better if we were not Christians, and we the Germans could've done it better if they were not Christians.