In what way do Dat, IPFS, SSB, Mastodon, ActivityPub, Matrix etc. counter the push for some centralizing effect, in that eventually everyone is still dependent

In what way do Dat, IPFS, SSB, Mastodon, ActivityPub, Matrix etc. counter the push for some centralizing effect, in that eventually everyone is still dependent on the same server? It's still possible to host your own website & server, but not as easy as setting up a Facebook profile. Same goes for e.g. Mastodon: running your own server isn't as easy as creating your just an account. How do projects like Mastodon not end up with a big server (or a few big ones) that everybody uses? Edit: Not all of the protocols I mentioned use servers, some are P2P which don't have that issue, I think.