A sense of how to start a Diaspora State online comes from business law with its supranational (globally dispersed) corporation, not that other structures, say nonprofits, aren't also supranational.
Say on leaving Gaza (uninhabitable at this time) a guest (a Global U person) receives a choice of nationalities, including Palestinian, but with a separate set of choices regarding where to go next. We know Egypt and Jordan have said they're not offering vacancies, however let's expect some vacancies elsewhere.
Per this journal, a science fiction story got rolling wherein Cubans, friends of Palestinians, likewise embargoed (BDS hits everybody it seems), are offering some Cuban slots and the documentation is done digitally. Head shot in a booth, printable record, memory stick, database, and you're on a plane from Gaza to Cuba (via Malta? I don't know).
This would be a tiny pilot study, and no, this isn't a torture taxi to Gitmo. There's no need for any overt US involvement. Cuba does have some olive groves. That some Palestinians were showing up around Cuba would not be kept secret. This would be positive PR, a story of helping families escape a hell hole.
The process of documenting with a Palestinian flag icon, for those choosing it, is not a United Nations thing, but a datum in a database thing. We have all the national flags, or do we? Who gets a flag in Unicode? How about flags gone by? How about flags in the future? Unicode is not "full" we all know i.e. there's plenty of room for new glyphs. OK, here it is, one of the emoji. That's sufficient for Postgres or SQLite or what have you.
I believe Florida's governor declined to offer any slots or vacancies. I don't know what the other states are saying. I'm guessing they feel semi-paralyzed because any innovations around getting people evacuated from the Gaza killing fields will be labeled "human trafficking" by critics.
When it comes to exporting human beings around the planet, there's lots of paperwork. That's what your university is endeavoring to help with, with a student visa, but there's that sensitive "town-gown" relationship to consider. What if your home country wants to draft you, what rights do you have to stay away?
The main point here is these pilot projects need not and should not be huge at first, as we have bugs to work out. The EU has gained more experience with processing and documenting those coming in illegally, although Florida has been dealing with Cubans for decades. Ever since Texas became a state, we've had tensions with the state of Mexico in the human trafficking department, along with Drug Wars.
The question is what are the next steps, once an evacuation system is established, for besieged refugees everywhere (with Gaza the showroom exhibit)? We're talking about a global underground railroad. As a Quaker, I'm just "talking the walk" meaning you'd expect stuff like this from a "human libber" i.e. someone wanting more, or wanting to better secure, liberty for humans -- and so, like a Humanist in that regard.
I've been dreaming of Asylum Cities, which are not all the same and which learn from the mistakes of others. A first objection here is: don't we already have asylum cities? Am I dreaming of anything we don't already have? Just look at history right?
Refugees from all over the place gravitate to these various urban centers, where they often find congenial groups engaged in the same or similar struggles, sometimes in Diaspora Nation mode. New York City is a haven for many such virtual nation global subcultures. France has been a refuge for Iranians in exile. The US is home to a Chinese Diaspora as well as a Cuban Diaspora. Given the relatively open switchboard nature of domestic media, the psychological battlegrounds move to where Americans get a front row seat.
Once some small elite, enrolled in this "Escape from Gaza" program (thinking of the movie Escape from New York) -- perhaps to return there when sanity again prevails someday -- starts getting documented as Palestinian (i.e. database fields, allowing multiple citizenships and affiliations), pressure will likely build to let more people register, which could lead overnight to a Global Registry and all the paranoias that would entail.
Short of such a system, the possibility of international travel with a Diaspora Nation document (somewhat ceremonial in function) would help plug the holes in the current UN system, which seems unable to register the world's peoples for any humane form of nationality whatsoever. Too many fall through the cracks, like Tom Hanks in The Terminal -- which is why alternatives might well be arising (the Zeitgeist is creative). Too many are deprived of their human rights per the UN's own declaration of what those might be.
A Diaspora Nation might also be a Nostalgia Nation e.g. one puts an icon for Persia or Prussia on one's travel van. There's no campaign to make passports or citizen ID cards for these places. More and more students are getting a standard university World Pass by default (by 2050?), and relying on university infrastructure to maintain a basic standard, in terms of providing orientation classes and onramps to lifestyle options.
Someday national citizenship may be an unnecessary frill for some, yet still an essential component of one's identity for others, or somewhere in between.
One's ability to move about the planet need not depend on having a declared nationality. You have your resume, transcript, health record. Your social media help convey your ethnicity. You have joined some cradle to grave work-study program perhaps. You're a nuclear materials scientist with a specialty in medicine.
Perhaps the nation you most identify with no longer exists within in the UN system (or never existed), but that doesn't force you to pick a different one. Databases support these additional fields.
That's the big picture of where we're maybe heading in Global U terms (its own namespace). Global U == Spaceship Earth in this cosmography.
What we're against is forced confinement of innocent people using the ruse that they have the right to remain in place, and that no one is allowed to "force" these prisoners to freedom. That's a pretty cynical rhetoric a lot of us see through. Whatever happened to freedom of choice?
If you're all for human liberties not being interfered with, then that includes the liberty to move yourself and your loved ones out of harm's way.
Contriving to pen the Gazans inside Gaza requires collaboration among nation states well beyond those in Mesopotamia or Eurasia. But then the nation states violate one another's sovereignty routinely, to where they're clearly only notionally sovereign. It's not a system still in need of undermining. That system sank a while back (Grunch of Giants, St. Martin's Press, 1983). We're already floating in its wake, trying to make sense of a chaotic world.
In sum, not everyone is OK with forced confinement policies and some may take it into their own hands to catalyze the emergence of a virtual Palestine with or without UN representation. The parallels with Zionism are obvious, but then "let my people go" is an age old protest. Jews are especially well positioned to understand Diaspora Nationhood, whereas Christians and Muslims have felt more secure in respective empires.
Go where though? In search of a homeland, a promised land, a place on the planet, the planet as a whole, as a last resort, although not exclusively. We co-exist. We enjoy our time as guests and explore our campus freely.