Earlier quoted context omitted.
Let each user block what they don’t want to see. With filters, ai, etc. Don’t have a centralized “overlord” decide what an individual is allowed to see. That should be obvious and not controversial.
Having run a mail server, I don't think it's reasonable to expect most people to contain the deluge of spam and phishing attacks they would get if just told them to "sort it out" themselves.
With email, if you don't want to receive someone's emails anymore, you unsubscribe. Or put it in spam (equivalent to social media block) and you won't see those emails anymore.
"Platforms" claim that because they're platforms, they have a duty to "remove toxic elements from the platform". That doesn't work when they're practically monopolies for online speech, i.e. when if you get banned by one and you're famous enough, you get banned by all of them.