This sounds terrible, but have you ever looked at what they do right now to folks applying for a tourist or business visa from one of these countries. I don't endorse it, or the idea of borders at all, but honestly it might make the process MORE accessible.
RE: 
Bluesky Social
PBS News (@pbsnews.org)
The State Department is proposing requiring applicants for business and tourist visas to post a bond of up to $15,000 to enter the United States, a...

