Small postscript: when I mentioned our long traditions of law and common practice against media monopolies, I should have included a few references. The FCC had regulations against cross-ownership in local media markets. Many of these were recently repealed. https://www.mercurynews.com/2017/11/16/fcc-repeals-decades-old-rules-on-media-monopolies/.
We also had a fairness doctrine that compelled local TV stations to air competing views. That was repealed a while back.
But the point is we do have a long tradition of stopping information and communication monopolies, not from overcharging us, but from restricting our access to different sources of information and opinion. The legal tradition of free speech goes beyond stopping government censorship, but also includes preventing censorship by private monopolies.