>Having decentralized entertainment platforms

How? I don't even think decentralized is the appropriate term. They're distributed entertainment platforms in that they're protocol based, but regarding the distribution of content there's nothing in it that decentralizes reach. The social graph of Twitter and Mastodon could in principle be identical.

Malicious actors don't need to control algorithms. States running influence campaigns on say, Youtube or Facebook don't actually control any algorithm, they adapt their content to what does well on the platform. And they could equally do this, one could argue even more effectively, on the fediverse.

Saying the Fediverse solves top down influence is like thinking that Bitcoin solves wealth inequality. The distribution of the network is completely agnostic to the centralization of the content.

Each server on a federated platform has control over how content retrieved through ActivityPub is delivered to its users. A healthy federated network allows competitions between "algorithms" for the same content. The social graph can be identical, but how it's traversed differs.

Think about how platforms have algorithmic comment ranking now, where two users who open the same comment section can see different top comments. This is a corporation or state (think tiktok) directly influencing how someone sees what their community thinks.

I don't see the bitcoin comparison.