[imardmd1]

Twitter, privately owned, is not the public square to which all are admitted and all permitted to speak. Twitter is a private forum of whom its management decides who can join, what they can discuss, and how the participants can say it. Donald Trump can express his opinions as long as he obeys the rules. If the management assesses a particular ongoing matter to cause harm to its business or to other participants, it can declare Trump to be playing out of bounds and sideline or eject him from the forum as a commenter.

The proprietor of a social media business is the gatekeeper. Free Republic operates in a similar fashion. It has published the rules for engagement. If the moderator decides, an active member can be zotted without recourse, because it is not PUBLIC.

Get with it, my FRiend.

[RandFan]

Jack Dorsey himself has said Twiter is like a public square.

Jack Dorsey: Twitter users consider it a public square

https://www.youtube.com/watch?v=9FHgkHToH2M

I think you need to read the SCOTUS decision from 1949 on public squares that are privately owned. Free speech is protected. The plaintiff in that case was trying to preach and was refused.