Cable TV is obvious rent seeking, I'm not sure he's right about Facebook,
Wait, what?
Cable companies, at least now, produce a lot of media content they then build and maintain the infrastructure to distribute that content.
Facebook does none of that.
Same thing with a MVNO, just because it seems like a good deal doesn't mean it isnt rent seeking. It's uber or Airbnb for cell service. And 500mb? Do you know what a, techie, millennial or gen Z does with 500mb? Complain on social media about their cell service and how much they charge for data.