Earlier quoted context omitted.
US really need to deregulate (btw I find this word an oxymoron, but english is not my first language) their ISP's and most countries really need to deregulate their wireless providers. Imagine single shared spectrum easy to setup eSIM, easy to terminate contracts. Unfortunately most countries want your ID nowadays when you sign up for internet...
The problem is its not so easy to share spectrum. In reality you can only have a single transmitter/receiver on a given frequency band in a given area.
There's one network (ran by one gov agency) and rest of the players are basically MVNO's, doing customer support, marketing and negotiating peering. Just like traditional ISPs work in many western countries.