Someone's gotta control the list of domains under a TLD and arbitrate who actually owns them and what their name servers are. When that's a private company they are subject to laws of the countries they operate in (and if it's international consortium, whatever country holds the most power within the consortium).

I imagine there are a few countries and companies that'd prefer the control of their internet presence not be strictly in the hands of the US government.

Though certainly there are folks who don't totally think through whose in control of their domain, see: https://techcrunch.com/2011/04/04/letter-ly-abrupt-ly-loses-...

the IETF and ICANN have codified the underlying principles that tie ccTLDs to countries and your "here's a thought" won't do any good to change that.

No, thank you. I like to know that .go(v?).ccTLD are the official website of the government of my country.

We lack a single world government.

You can make your own TLDs, like the Etherium folks do, but you have to convince other people to trust the name resolvers.