I think it’s a bit disingenuous to use the term free speech in this way given the context of this discussion. Words have power given their historical usage, free speech is well known not only as a fundamental American right but perhaps the most fundamental right there is outside life liberty and the pursuit of happiness. Because of that the term tends to sneak in a connotation that isn’t earned given how you are using it. And it may not matter within this particular conversation, but at large I guarantee you that is manipulating a lot of people into taking a position they do not understand.
With that said, let’s continue based on your definition…
Well I did jump in on the conversation so it's possible I am missing some context. But let me explain a little more what I mean. The head mod on this site, Barney, is staunchly pro-choice. Imagine if he decided to remove all posts advocating for the pro-life position, and even started banning users who expressed pro-life views. Then someone says hey, I don't think that kind of suppression of views is appropriate for a debating website, a debating website should be a free speech zone and he responds "I'm totally committed to the principle of free speech, but that only applies to the government, I'm not violating anyones free speech rights by removing them from a private platform." That's true from a legal standpoint...but is that the way a person who supports free speech as a principle would behave?
So if someone supports the social media giants colluding to censor debate on, say, if the COVID-19 virus leaked from a lab or had a natural origin, or suppressing a major news story about a presidential candidate a few weeks before an election they don't really support free speech. There is a lot of reasonable debate to be had about where the principle of free speech ends (fire in a movie theater, where libel/slander start, obscenity on TV, etc) but absolutely nobody who supports the examples I listed is in favor of free speech as a principle. I really wish people would just admit that so we could talk honestly about it.
Most of us don’t because the principal is logically self defeating. If Person A uses Platform 1 to spread their ideas and the owner of Platform 1 stops it, that is the owner of Platform 1 using his freedom of speech. To be against that is to be against the very principal you are espousing.
Andwhen it comes to social pressure it’s even more logically contradictory. Social pressure is nothing more than people within a society each exercising their own right to free speech to criticize someone else. To be against that is to remove everyone’s right to free speech in favor of one individual.
What you are ultimately advocating for is not a right to free speech, it’s a right to shove your ideas down the throat of a society that does not want to hear you.
Well if I were advocating forcing private actors to platform people then I would be violating their rights. Since as you noted these platforms are basically a monopoly and since we know they collude to determine acceptable bounds of speech there may be some argument for doing that but it's a lot stickier than what people on the right often think. What I'm advocating for is free speech as a principle, they may have the right to ban people for expressing perfectly rational and ethical viewpoints but I also have the right to criticize that.
As for the highlighted bit I was going to say that's a strawman but that's actually fairly close to my view even if its an uncharitable way to phrase it. I absolutely think society would be better if there was a stronger social norm that people should not be punished for privately holding or advocating for a political position.
I said in another thread that I think the solution to misinformation is good information, not censorship. I'm going to tell you a story and I would appreciate your thoughts on it. When the results of the 2020 election were rolling in, 538 (a popular left leaning elections blog) was live tweeting batches of votes as they came in. There was a batch of votes that came in from Philadelphia and 538 described the batch as something like "38,000 votes, all for Biden." I thought surely they are exaggerating, they can't ALL be for Biden, 38,000 to 0. But they linked to a file from the state that showed votes as the batches were processed and this one was indeed close to 40k votes for Biden and zero for Trump. Even if 99% of these votes were expected to go to Biden, NONE going to Trump is incredibly unlikely. My scientific calculator returns a result of zero when I plug in .99^38000. Clear evidence of fraud, right?
Well, me and a few other people noticed this and asked 538 about it, and to their credit they actually provided a good explanation. In the very next batch of votes from Philadelphia, Trump did twice as well as expected. What likely happened is that some ward sorted their votes by Biden vs. Trump, and in the process of uploading their "vote dumps" at one point they reported a bunch of the Biden ballots, then in the next report they reported more Biden ballots + all the Trump ballots they had missed. Now it's possible that these were fraudulent votes still and the next batch Trump just happened to overperform for some reason but I find the explanation that they were uploaded weirdly more plausible. If instead of answering my questions, 538 had reported me and gotten me banned I would have thought that the 2020 election was rigged until the end of my days. Would that really have been a better outcome than rational discussion? I'm fairly certain that if someone is inclined to believe something anyway, shutting down all discussion of it makes them double down a lot more than proving them wrong does.