When BT was privatised a rapid effect was an increase in what we pay. They were also given responsibility for internet back bones - main highways effectively. You may see them about improving telephone lines to enhance internet performance. Eg outside my house changing connections to water proof ones. I asked the bloke what he was doing.
They would be swapping ordinary contact terminations for gel sealed which are water proof, sealed against oxidation which always caused noise and poor internet speeds.
Here I have a very wide range of suppliers, FTTC or full fibre, with a full range of speeds from 17Mbps, to 1000Mbps. Cost now, is less than we paid when there was only BT available, not taking into account the decline in the value of money, but now we have broadband as well as a voice phone included. I have 40Mbps for around £22 via Plusnet. Fibre is there at the end of my drive, should I want it, which at the moment I do not.