The problem is that you are drawing the parallels in the first place. These are not the same things. This is precisely what a totalitarian regime espouses: information so dangerous it must be selectively distributed and access must be accounted for. Today it's pornography. Tomorrow LGBTQ materials are labeled as pornography. And soon thereafter you're putting in age verification to access non-state sponsored news, wondering "why is this required? should I be looking at this?"
I have no doubt that these are well-intentioned attempts by concerned citizens and civil servants to preserve some semblance of a decent society. The problem is that it's _always_ coopted. _Always._ Yet we can't seem to help ourselves but clamber towards more consolidation of power in the face of some new hysteria.
Your final point... _these supposed free speech advocates have supported an authoritarian, therefore they have no credibility_, _the only free speech advocates are in silicon valley_, _this is the only defense of free speech_. I have no idea what your point is.
That a few capitalists used free speech as a shield to make more money, we should throw the baby out with the bathwater?
I refuse.