That's like climate denialism. There is a documented 30-year history of ISPs not expanding their network while claiming subsidies for exactly that: https://newnetworks.com/bookofbrokenpromises.htm .
...even if it doesn’t make economic sense
You're conveniently ignoring the "not justified by genuine issues of technical or economic feasibility" in your own goddamn quote.
Yeah, which has nothing to do with race at all, and everything to do with population density. ISP’s don’t want to invest to expand to rural areas with few customers for obvious reasons, none of which have anything to do with discrimination of any kind.
You are conflating two things.
I haven't read the book but does the data show they did it in a discriminatory manner, that is they didn't expand to minority areas even when it made business sense?
Then why grant them monopoly rights in the first place? Why not remove monopoly rights instead of adding more regulations/bandaids?
Does a free market have monopoly rights?
Because it is in society's interest that utilities be available to all. We don't have a post office for only the areas profitable to deliver to.