Or finding any one of "social media's harms" that could not, in some world where Facebook, Instagram, and Tiktok did not exist, be delivered in just as socially harmful (and beneficial) a form by sufficiently-accessible versions of the apps and protocols you value and use every day.

I met someone recently whose primary addiction is Wikipedia.

For me, Signal and Hacker News are the most addictive pieces of software I still use.

Serial television (best delivered by WebTorrent and The Pirate Bay) is by far the most addictive, for me, so much so that I had to quit.

And you can definitely run successful social movements and political campaigns (for both very good and very bad things) over HN or WhatsApp/Signal, given sufficient adoption.