Alright, again setting aside that this is trolly bullshit,
All states use the implicit threat of violence.
All states. Also all Anarchists, so as to prevent the formation of new states.
That includes liberal states! It includes Democracies!
Anyhow.
If you decide to actually massacre millions in the name of “white protection,” the Liberals get to kill you.
What you’ve just said implies a great confusion about the availability and power of political will.
Extermination takes more political power than separatism. If you have enough power to attempt extermination, then you have enough power to do separatism without it getting watered down. If you have half the power required to enact extermination, you have enough power to do separatism without it getting watered down.
And if the idea that some people might change their minds and later invite others back in applies to separatism, then it also applies to extermination, assuming you don’t literally control all habitable areas of the world in order to attempt extermination completely.
It’s also about political power required per unit area, per political operative, number of political operatives, et cetera.
Making a white city-state requires the coordinated action of the population of a city-state. So let’s call it somewhere between 1-7 million. They all have to move into, and control, only a city-state’s worth of geographic area. Most of them don’t have to be Party Militia members, so your real hardcore force would only need 50,000-500,000. to attempt this.
The entire process can be legitimized through the use of democratic means and ideology of national self-determination. The desired area can attempt to secede through a vote, severely undermining the ability of democratic nations to respond.
On the other hand, a plot for extermination requires seizing control of the whole country, and maintaining that control. For a country like Britain, with a population of 65 million, it’s going to need support from at least, let’s say, 25% of the population. So around 15 million. And that probably isn’t anywhere near enough unless you also have near-total control of the army.
One of these might actually be possible in the 21st century without the context of an invasion by a foreign power, the global collapse of oil reserves, the government of the United States of America declaring bankruptcy, and so on. I’ll give you a hint - it’s not the one involving the mass murder of people who have, individually, not committed any crimes worse than a parking infraction.
And that’s disregarding the effect that CRISPR and similar technologies are going to have on race.
But of course, this assumes White Nationalists who are not too delusional and who are capable of pulling off something reasonably well-organized with a realistic and achievable goal. The kind of people that could somehow make White Singapore.
Which don’t really exist in numbers right now.
I’m hoping that Leftists will be restrained enough to prevent them from coming into existence.
Besides, you’re forgetting a key part of why the Left has been able to advance, socially. A price paid in blood is a price paid in your nation’s will to survive.