https://techcrunch.com/2019/10/20/facebook-isnt-free-speech-its-algorithmic-amplification-optimized-for-outrage/

This week Mark Zuckerberg gave a speech in which he extolled “giving everyone a voice” and fighting “to uphold a wide a definition of freedom of expression as possible.” That sounds great, of course! Freedom of expression is a cornerstone, if not the cornerstone, of liberal democracy. Who could be opposed to that?

The problem is that Facebook doesn’t offer free speech; it offers free amplification. No one would much care about anything you posted to Facebook, no matter how false or hateful, if people had to navigate to your particular page to read your rantings, as in the very early days of the site.