No the cable monopolies are a real problem.
> The overwhelming trend is toward mobile.
Yes but wired internet is never going away (largely due to physics).
Some form of radio communication might be the answer, but there is very little unallocated bandwidth and it's bandwidth that we need.
Municipal fiber is not proposed in places that lack internet service, it's proposed in places that lack good internet service. People are upset that aging and oversubscribed cable company infrastructure isn't good enough for their media consumption desires, and municipal fiber is the solution.
Where we have problems getting people online at all is in rural areas, where 1) there are no municipalities and 2) distances are far too long for WiFi. There, the best option is low-cost point-to-point antennae on high ground. The hard part for rural Wireless ISPs has been finding someone to sell them transit at a fair price.
LUSFiber is, lacking a better term, solvent.
Which cash strapped municipalities using public funds are you referring to?