Whenever platforms have taken even the smallest steps in that direction, the right-wing authoritarian political parties freak out and blackmail them into stopping, or in the case of Musk simply buy them out outright.
For instance TV was basically a drug for the last generation, there was people watching near 8 to 10h of TV a day. It might have been replaced by something else, but I don't think our current generation has this specific issue.
From that POV, currently people in their 30~60s are the more stuck to social networks and raging against fake news all day, while younger generations tend to be on different services with potentially a lot more reduced circle of users.
Do we really know how the generation that is 5~6yo right now will react to our social media landscape ? (put another way, are we fighting the last war ?)