You can totally own your social media accounts (and I think politicians, parties, companies and people should) if you run your own Mastodon, Peertube etc instance (sure, AI-ssholes will still steal you data but you can’t not have that if you do something on the public internet today, apparently). Yes, only a few people will want to learn how to do that but just like with email and websites (more things all of the above people should have) you can buy hosted versions and do backups, move to a different host, own your data. The problem is that people don’t care until it’s too late.