And certainly the big tech (here's looking at you Google and FaceBook et al) business model is propaganda. As is the business model of the Washington Post (here's looking at you Jeff Bezos) and the New York Times.
If the messaging in a society is used to persuade rather than listen things break. A simplistic model of is social insects. If ants can't leave a pheromone trail, or if some ants lead misleading trails, the colony will die. It will not be able to adapt.
Breaking up big tech is appealing, but it does not change the fact that we now "live" in the internet and that the current internet is a gigantic propaganda machine.