This was all before the most recent election, before Musk bought Twitter, etc. also stuff like [https://timesofindia.indiatimes.com/technology/tech-news/don...], [https://www.theguardian.com/us-news/2024/sep/27/trump-google...], etc. etc.
Personally, I never heard so much wailing and gnashing of teeth when Trump won the first time (knowing a number of Google leadership folks).
There is going to be a lot of noise.
I'm in agreement on all of your points regarding Facebook and other platforms fighting hard to maintain their policies, and feeling stuck between a rock and a hard place with all the bullshit flying around while half of the population was looking very severly at their fact checking and moderation stance.
At the same time, these platforms were also essential in Trump's ascension [0] and the amount of discourse happening because of the controversies was also fundamentally beneficial to them. They ended up suspending Trump's account, but countless of other accounts were left to fill that gap in a more policy friendly way. Trump supporters were never faced with a situation where they've nowhere to go (one of the reason IMHO why Truth social and others never really took off).
In 2018 we saw the Cambride Analitica scandal, and while the FTC fined Facebook and there was all the "we're reviewing all our policies" theater, at its core facebook didn't have to do anything radical and we didn't see Trump's government actually doing anything to Facebook, when it could effectively have done whatever it wanted. And it sure didn't hurt that CA was laundering facebook data to political parties, so while a strong stance needed to be shown, I don't think any of the leaders on either side saw facebook as a problematic entity.
Twitter was I think another story, but at this point it's also dead.
Perhaps what I'm saying is there was a public stance of fighting back, but on the business side media platforms still embraced the incoming money and attention, while also being in enough good terms with the government to not get shut down the way TikTok for instance has been hit during last administration.
[0] https://www.wired.com/2016/11/facebook-won-trump-election-no...