It's been deliberately designed to cause strife. They are genuinely anti-human companies that seem to want conflict and tension to occur.
https://www.theguardian.com/commentisfree/2014/jun/30/facebo...
This article was very on-the-nose, that really should have been the writing on the wall.
They would change their algorithms immediately if large advertisers applied financial incentives. We've seen some of this with Youtube's policies leading to videos with censored profanity where its use was previously normal and neologisms like "unalived" to mean killed.
Musk's Twitter may be a partial exception since it's decisions are now driven by a single man's preferences rather than an amoral mechanistic imperative to increase shareholder value. That doesn't seem to have improved things.
I mean, how do you know that?
How do you know that the goal isn't actually to perform social engineering on a huge scale and that the advertising is just the way that goal is being funded?
With TikTok, there's some chance geopolitics is a factor as well.