Social media is just decentralised information flow. Populist movements are rising because people are finally seeing how absolutely exploited they are by the elites, because the elites no longer have complete centralised control over the flow of information.
Content sourcing is decentralized, sure, content distribution is not. Through curation, one can craft a narrative without even needing to pay propagandists to write copy.
So wait. You upload everything you post to a centralized service, which uses a centralized algorithm to decide which of the billions of available uploads to show to each person, in order to increase the advertising profits that accrue to the centralized corporation that owns the whole thing, and that's decentralized information flow?
Have you considered the possibility that you may be an idiot?