I don't know, this is just pure speculation. What I know for sure is that the reason to protect companies that exploit "natural monopolies" is to protect the consumer. And right now, the protection of these companies is hurting the consumer, more than helping him.
Yeah, in an ideal situation the state would be able to provide "free" internet at a really low cost. But that solution overlooks this huge problem: https://www.youtube.com/watch?v=mgJ644LPL6g
In this case, I suggest you model rural America's density, and the cost to lay down a wire, or fiber, or whatever in a town, along with all the needed infrastructure.
Then I suggest you model the financial returns of that investment under conditions where there are multiple players.
If you do this well, you'll find that as you add competition, you add marketing cost, and you're also forced to amortize the fixed infrastructure costs over smaller and smaller numbers of consumers. And you'll also find that whoever was first to market in that area has a dominant position from a game theoretical perspective, and can make moves that would make it essentially impossible for any competitor to enter the marketplace profitably.
Natural monopolies aren't made-up things.
Since these regulations occur at a local level, some of the rules are more effective than others, and some of them are straight-up corrupt. But the common case is not government creating monopolies, but rather government restraining them by regulating them.