And who judges who is the asshole objectively?
For example, in my book a president who actively bombed 7 countries, continued wars he was elected to stop, under whose terms ICE deported more people at the border than Trump (wall or no wall), gave Wall Street a "too big to fail" bailout, enlarged surveillance and hunted several whistleblowers and threatened journalists, is more of an asshole (and a danger) than another who is just a crass business/tv personality that wrote mean tweets and that rednecks liked. That's whether the former has had more political experience or is a smoother talker, and polite company.
But that's just me, and neither is even my President, so...
>Maybe having a Twitter account is a privilege, and not a right, and that privilege is correctly granted on the precondition that one will not act like an asshole.
No, I'd say that having an account to social platforms above some population reach level shouldn't be a "privilege" but a right (that is, subject to due process/law, not up to the whims of the company).
Else, those who control said platforms (where the majority of the public frequents and where most of public discourse happens), also control the public dialogue.