It's designed to be that way.
Anybody remember the early days of facebook? It wasn't all paid promotions, influencers, instant play videos, etc? You remember the facebook wall? Actually being able to see posts from people that you had friended?
It hasn't always been as dystopian as it is right now. It got that way because these companies have been able degrade their services without seeing any kind of decrease in profitability. On the contrary, many of these companies have only *grown*.
Have you noticed how Google search is filled with ads, and it's search results have gotten worse over time? It's not that way by accident. Prabhakar Raghavan oversaw the kneecapping of Google search. Where as before the search giant wanted your *first* result to be the correct result, now they've taken to burying the high quality results further down the page, *so that you might spend more time on the results page and click on one of their ads*.
They've seen, basically zero decrease in their market position.
I dunno about you guys, but when I hear about a company that is able to continually make their product worse without impacting their total user base or profitability; that sounds an awful lot like a monopoly to me.
Which, ultimately, is the point. End-stage capitalism. Games over losers, I've got all the money.