[OminousWeapons]

The solution to some of these problems is obvious: ban collection of data for advertising purposes and ban targeted, cross platform advertising. You would still be allowed to advertise, but ads would have to function like magazine ads effectively where the only targeting is by site interest. This would force these social media companies (and many others) to change their business model and actually charge users directly for services which would not only shrink the user base but would make running a bot farm increasingly unaffordable at scale.