The flaw in this logic is they are a monopoly. They continue to profit off of the bad user experience, that’s been their business model since day one, and they keep posting growth numbers. I hope they do die, but in the meantime the bad decisions still negatively impact users, and many of them didn’t have a choice.
The other flaw in your logic is assuming that markets are free. A free market is one that is both informed and consents. In this market, there is both misinformation and a lack of consent.