Do you want a local PUC deciding how fast your internet should and how much it should cost? Do you want them deciding that 5 dollars more a month isn't worth tripling the speed?
It works for power and water because the infrastructure doesn't turn over very fast.
If you had your way in the late 1900's we'd all be on ASDL right now.
Edit Plus, the electric company definitely does some kind of demand shaping: shutting off AC compressors on a rolling, as-needed basis. In water emergencies the water company will declare which days I can water the lawn or wash my car. "Utility" isn't synonymous with "totally dumb pipe."
Furthermore, Internet bandwidth is not a commodity like electricity or water. There's no supply to diminish. What the telecoms want to do is more like if suburban streets were toll roads, Amazon owned the toll roads, and Amazon wanted to add a "congestion" charge for trucks carrying non-Amazon packages.
I agree
Perhaps it still makes sense to turn the last mile into a utility, but best to go in with our eyes open about the looming downside. There's not a free lunch to be had here.