https://www.law.cornell.edu/constitution/tenth_amendment
I think net-neut advocates who really think there's a dark star in the offing for the web should be pushing utility-style muni networks. They're wasting time and money trying to shove the FCC into their view of the marketplace here, and shedding longer-term credibility by refusing to countenance two realities:
1) Broadband is becoming a more competitive industry, not less
2) FANG have parochial business motivations too re: their pro-net neutrality, and they are no more angelic than Comcast's.
Defocusing on national rulemaking and incubating muninet successes in rising cities would do more for their desired outcome.
The internet is textbook interstate commerce, and therefore not subject to the 10th amendment. You're getting internet from an ISP who's likely headquartered in another state, who's delivering content from a provider in a third state, and routing that traffic through a half-dozen other states. It would be an absolute mess if every state could say what constitutes "network neutrality" and the ISPs had to deal with different laws at every routing hop.
I referenced it because, in the U.S., the residuary (or "police") power resides in the states. Large ISPs have tried to fight municipal broadband in the courts, but [the point I am making here] is that states and municipalities have extremely broad discretion in terms of what projects they can undertake. And building a local ISP is something they certainly can do.
Would love to see a citation for this, most people (my view is US-centric) have the choice of 1 or 2 local broadband wireline providers: the cable company and/or the local telco. This hasn't changed since... ever. Having a third provider is very, very uncommon.