So what changes are proposing exactly?
People are better off going with their gut and choosing people they have most things that matter to them in common as who they associate with than attempting to make fetch happen.
I don't really care what people who aren't of my Nation, Baptist Americans with roots that predate the Revolution, do, but the world would be a better place if imperialists were scared to try to rule anyone.
Human Empire you say?
Otherwise, my only response to your posts is huh?
Humanist is a more accurate way to describe "Liberalism" of today. People that think there is one Human race, that God isn't real, that we're all in this together, etc.
Just because you put "Nation" in a capital letter doesn't give the word magical powers.
It does however make you sound like a fairly boilerplate fascist. Especially the banging on about how nations must all be unified and free of icky (non fascist) ideologies, and how states and nations must be co-terminous.
If fascism is synonymous with National Socialism, like it originally meant (I'm sure you don't know that or care to know that b/c you make up your own definitions to words), then Nation has nothing to do with it.
Hitler wanted a racial empire, which meant he desired demographic displacement akin to what the Han Chinese have been doing for thousands of years. He expressed admiration for the Chinese for that feat of populating and dominating so much land with the dominant nation achieving the appropriate population to do so without being challenged substantially.
If "Fascism" is defined that way, then you are mistaking placing Nation first for racial imperialism. There is such thing as stopping at borders you diplomatically establish with your neighbors. I know it's hard for someone like you, that wants to change the world, to understand.
Bloke insists "The Nation" has to be unified, essentialist, and free of other ideological influences, and a state should only be for representing and expressing the collective (unified, pure) will of one nation.
I'll give you precisely one guess how achieving the goal of an ideologically unified and pure ethnostate looks in practice.
We, as humanity, are not capable of achieving something so Godly and divine. There are always people stupid enough to let in migrants that pollute the future with revolutionaries. There are always greedy rich people who would import labor they pay less for than help their own people's homeless. There are always hawkish nutjobs who want to flex their biceps against anyone they can get away with, damn the consequences.
As a Christian, and someone who understands the meaning of the Tower of Babel, we are too stupid, too fallen, and too easy to trick to form a Nation-State. We will always be tricked into making our lives worse and others' miserable.