Blockchains aren't companies, scrip isn't a thing anymore, DeFi renders it interoperable even if it were, we all have smartphones and internet now, webapps and networks change the entire marketplace for information labor, no part of this suggests that the company offering the civic services would be an employer or the only employer, company towns were for in-person work, et c.

Even if you just focus on the idea that a company town had a single employer for in-person work, and now we work online for anyone via the internet, this doesn't even have the basic parallels.

The company owns the wires and radio bands. Maybe by a funny coincidence using alternative blockchains and working remotely for other companies creates an 'unfair to the other users' drain on bandwidth.

No, that would be the Nevada public utilities commission and the FCC.

They aren't establishing a new country, just like everyone else in Nevada they are subject to state and US federal law.