As I've blathered on for years, business doesn't make fortunes by manufacturing product, but by manufacturing scarcity. Lumber. Water (soon!). Bandwidth.
And people: Businesses make monopolies, not governments. Businesses want to control supply, create scarcity and drive up prices and buy up their competitors so they can drive up prices again. There Ain't No Such Thing As A Free Market. The oil cartels control oil supply, Diamond controls comic book distribution, etc. Choke points *they* create by ruthlessly destroying their competition. Government can't mandate competition in the sense you can't pass a law to make sharks stop eating tuna. They persist in eating the damned tuna; it's their nature. Sometimes, as in the last 30 right-wing years, the tuna *is* the government.
Monopoly exists 'cause lack of regulation, not 'cause of it.
In cabling the US, the US businesses refused to provide service unless they had local monopoly, so the cities divvied up their territories and the cable companies rolled out. That was a business-demanded requirement, not a government-demanded one. They would not provide unless they were exclusive. The only alternative was municipal cable, which happened, but is mostly sued or otherwise driven out of business. Right now a federal law, paid for by the big cable companies, is about to make muni rollout *illegal*. You may blame government, but the businesses are buying that law.