But these building blocks would need policy change to thrive. Projects like the Fediverse, for example, are not able to integrate with closed systems or compete with the massive concentrated resources of the likes of Facebook. A set of radical policy changes would therefore be needed to force big social media networks to interoperate, decentralize internally, open up their intellectual property (e.g. proprietary software), end forced advertising (advertising people are subjected to in exchange for “free” services), subsidize data hosting so that individuals and communities — not the state or private companies — can own and control the networks and perform content moderation. This would effectively strangle tech giants out of existence.
I guess there's only so much tech can do.