It's title 2 regulations. Same reason where there are so few utilities companies. Remove the regulations. Free up competition. Not a hard concept.
For that to happen, the regulation has to actually loving hamper competition in the first place. This is not one of those regulations. Not a hard concept.
The reason there's so few ISPs and utility companies are because they're what's called a "natural monopoly," not because of net neutrality (and frankly I have no clue why you think net neutrality is harming competition, except some bizarre mindset where all regulation is the spawn of Satan). They have high start-up costs, and having mutliple competitors would involve redundant infrastructure.
From Investopedia:
"A natural monopoly, like the name implies, is a monopoly that does not arise due to collusion, consolidation or hostile takeovers. Instead, natural monopolies occur when a company takes advantage of an industry's high barriers to entry to create a 'moat' or protective wall around its operations.
The utilities industry is a good example of a natural monopoly. The costs of establishing a means to produce power and supply it to each household can be very large. This capital cost is a strong deterrent for possible competitors. Additionally, society can benefit from having a natural monopoly like this because multiple utility companies operating in the same industry overleverage the available resources."
Of course, it doesn't help that the ISP industry is
also full of "collusion, consolidation and takeovers" in addition to being a natural monopoly.