> everyone having moved to cellphones years ago
That is untrue. The news is full of stories of people who are right
now being forced-off hard line connections that they want and will pay
for. The choice is being removed, which is not a fair market.
But, telling any group of people that "they are the only ones" is
gas-lighting. Systematic lies to marginalise people was central to
the Purdue Pharma opioid scandal and to the British Post Office
scandal - telling people "You're the only one" when a problem is
evidently extensive should be a very serious fraud.
> don't generate income to pay for their upkeep
When many private companies took on telecommunications properties they
did so under obligations to maintenance of infrastructure,
availability and reliability standards. If it turns out their choices
of technology don't meet those standards of affordable resilience then
that's their financial miscalculation and their problem now. Or are
you saying that markets are incompatible with national security?