I hear you about it just being an evolution of the propaganda machine. And I think it's going to reveal cracks in the system. That it's going to rip the bandaid off faster than climate change which is the slow peel we're all dealing with already.
Harm reduction would be investing money in government regulation. Lobbying for government regulation. Usually this is seen as a disaster for business, but in this case it would throttle competitors too. And possibly save a lot of lives. Because this sort of automated propaganda is going to create a lot of fascist regimes all over the planet. Propped up by the illusion of democracy.