it's not the invisible hand's fault when that hand is tied behind it's back. there's so many politicians that have been creating legislation that prevents new entrants from coming into the market with regulatory capture. that's not a free market.
Politicians paid for by the incumbents.
Not everywhere though:
* https://en.wikipedia.org/wiki/Utah_Telecommunication_Open_In...
* https://arstechnica.com/information-technology/2016/06/what-...
There is no real way "untie" this hand in this case. The regulatory pseudo-markets that governments impose are often presented as "deregulation" but they aren't that. They're just a different kind of regulation. However, both companies and politicians put forward the claim that these pseudo-markets make their players "private enterprise" and so-absolved from responsibility to the public but that's a self-serving fiction.
Some areas have so few possible customers per mile that a fiber build by the incumbent provider would not break even for decades even with an 80% take rate by every building passed.
https://en.wikipedia.org/wiki/Natural_monopoly
> A natural monopoly is a monopoly in an industry in which high infrastructural costs and other barriers to entry relative to the size of the market give the largest supplier in an industry, often the first supplier in a market, an overwhelming advantage over potential competitors. This frequently occurs in industries where capital costs predominate, creating economies of scale that are large in relation to the size of the market; examples include public utilities such as water services and electricity.[1] Natural monopolies were recognized as potential sources of market failure as early as the 19th century; John Stuart Mill advocated government regulation to make them serve the public good.
... and suffice it to say, I agree wit John Stuart Mill.