It really blows my mind that there isn't a larger pushback against social media. I do see it here on HN occasionally, but I rarely encounter anyone in the real world that has a strong anti-social media stance. Even then, it tends to be more of an anti-facebook-as-a-company stance. There are outspoken groups for just about every real or perceived social ill, but I don't see it for social media. Maybe it is there, and I'm just not in the demographic of folks that hear about it.
I speak to a lot of folks in certain religious circles about it. A lot of the things the Church is typically against seems to be perpetuated by it--suicide, pornography, materialism. This is the same group of people that were vocally against rock music, drinking, sex, and D&D at various times in the past. The reaction seems to be "yeah, social media sucks" returns to scrolling on phone. My guess is that it's now such a foundational part of modern culture that it's impossible to avoid. It'd be like trying to live without automobiles, which requires an almost monastic dedication to the cause.