The Argument before 2015 is that Comcast and AT&T blocked content and slowed down access to certain sites. This was re-mediated by lawsuit. No government intervention was necessary. Also, the amount of choices the consumer has from broadband to cellular now is greater where consumers can take their money elsewhere. Treating the Internet like a utility is absurd.
If you treat the internet like a utility, you get a monopoly (like electric and water), in every major market, and NO price competition. You become totally dependent on a utility commission to make sure you only get screwed over a little bit every year.