The whole thing is just another passing fad of contemporary culture that will inevitably become a relic of the past as technology continues to make old tech, related culture and customs obsolete, as it has done with every other social trend of the times that is now long gone. We don't have to do anything about it, it has it's own lifespan that is totally organic. The entire model of what is considered traditional social media is at least halfway through it's culturally relevant lifespan already and for all its virtues it has so many toxic elements that many people are already completely done with it. In the past 5 - 8 years there has been a sizable exodus and moving away from this form of communication and interaction for a lot of people, to the point that is has quickly become socially accpetable irl to not have anything to do with any to all of the major platforms. As working musicians we have no choice but to keep some presence on social media just from a business perspective, but I even know working musicians who refuse to be a part of it, and they don't get ostracized or lose work because it. There are simply so many other readily available options for communication and transfer of information now.
The internet is, has and always will be much larger than a handful of relevant social media sites, and it will continue to evolve. Culturally, trends roll in like cumulonimbus formations and seemingly envelop the entire environment and landscape for those moments in time when they are present, but they inevitiably dissipate until the next thing comes along. What you're going to see as a natural evolution of SM is that it will change drastically in nature from what it started as (which has already happened, with fb for example being much more geared towards groups and less towards "friend" driven interaction) in order to retain users, but ultimately taking the same route that mesage boards did. There will be people who will use them forever, as well as deeply devoted brand whores, but they will just be niche platforms for the people who choose them. Modern tech and the nature of how algortihyms work has already turned society into a deepy niche driven culture. Everyone has an extremely personalized virtual experience now and people go to the places that their interests take them. The platforms that host those things are ultimately irrelevant, disposable and their replacements inevitable.