Look, i see this as shorthand for "twitter gathered the attention".But that doesn't mean that they own the attention or the people whose attention they have. Good of them to be pioneers, but, like everything, social media is 15 year old tech now and is commodity. The undeniable thing is, users funded 99% of the effort with their work and often with their own ad money, and twitter did 1%. Same (or worse) would go for other social networks. They created a viral vortex, but the intrinsic value of that is not as high as is perceived to be -- in fact most of the value is in lock-in and monopoly rather than in technical facilitation. I find the fact that neither twitter nor FB pay their users quite egregious, and attribute it to 2 things: 1) they have no competitor in their niche and 2) user collectives dont exist and users are not uninionized while those companies are uber-powerful in terms of money and lobbying.

> they already exist,

They don't exist but are coming, in fact i'd say they are late already. I think we 'll soon see major shifts to that direction . Practically, yes they will be just an extension of freedom of speech laws, that's the category where they belong (like how e.g. sexual orientation was added to anti-discrimination laws).

I m not arguing that free speech/free assembly rights will trample on property rights, but that the state should make sure public spaces exist for people to exercise those rights. However platforms should be required by law to make user data (including their friends identifiers) exportable.

I m no legal expert but I wouldn't rule out that some companies may be held into account if a judge judges that they acted in coordination and maliciously to obstruct someones free speech rights.