It's incredible that you can write such a lucid, well thought out, intelligent essay... until this point.
Then you go into the left field of hagiographic vomit of utterly fragile and failure prone ideas. It's frustrating... you are almost there! Like Noam Chomsky, you have a great way of detecting and delineating problems, and then stagger your way into untenable solutions.
You don't even understand the basics of individualism. It's not "me over everyone else". You are confusing individualism with greed (and your worldview has a long history of rewarding greed in horrific ways).
No, individualism is about individuals being empowered to make their own choices and not forced into other peoples' choices, be it choices democratic mobs make for them, choices religion makes for them or choices rich people make for them. Their body, their choice: applied everywhere.
You even almost got it right with cryptos (for once). The very nature of cryptos, all of them, is that NO ONE forces you to use them (eventually a government will, but maybe we can out run them). These projects are worldwide, 100% voluntary, and are the path to the greatest mode of wealth generation and liberty the world has ever seen.
But you, you think that people who had nothing at all to do with the size of the debt, somehow owe that debt? what the heck? You think a group of people should have power over individuals who have done nothing wrong?
You are right that the world is about to break up, I am excited about it too. I think it's going to happen far quicker than 100 years from now. But there isn't some silly notion about orderly change. What needs to happen is something better to be created, something that ties people together, where they get benefits by joining voluntarily...and then if they, as individuals no longer receive those perceived benefits, are allowed to leave. This is what blockchain projects are working towards. This is what free markets are. We don't have free markets anywhere, but where they exist more than less, you have a wealthier population, better education, lower crime. (would you rather live in the countries at the top of this list, or at the bottom? https://en.wikipedia.org/wiki/List_of_countries_by_economic_freedom)
Having 10,000 nations, especially if they can be joined and left voluntarily, is a true free market of sovereignty.
The one nation earth, is the exact opposite of a free market and it's pretty twisted that you can't deconflate these terms from each other in your head or your writing. Clearly, you have made capitalism your bogeyman, you see the word and can't think straight, even though I suspect you think highly of your thought processes.