Just to make sure I understand this — the argument is that in order to combat authoritarianism, Silicon Valley companies should censor more content?
The problem is not that everybody can access information. The problem is that click-bait false information is pushed by ranking algorithms more and more in front of the eyes of people who are ready to believe in them. The information bubble then is making people more and more radicalized.
It doesn't matter how good your blackbox algorithms are. Junk in And Junk out.