Well, what "angry people would agree with" is a pretty strange basis for an argument, anyway...
>Trump would've gotten himself banned from any of the forums I hung out in from 2000 to now. Not for being conservative, for being an asshole.
And that would be neither here nor there, cause your forums are not so massive as to shape public opinion and influence elections and news.
In smaller, disperse and diverse, discussion platforms, you would be entitled to think that he should be banned for "being an asshole" and even ban him from your forums, while others would be entitled to ban others that say the same or worse things from the opposite side of the political spectrum.
When one side, in a major public-opinion-influencing service can ban a whole side of the political spectrum though, and even the sitting president, that's a problem.
It's actually analogous to election influencing - same as if 9 out of 10 channels in TV only carried the views from one party and not the other(s).