So now all media companies must be journalist ventures?
I think you’re point is valid, that banning trump is what Twitter would do if the public interest reigned. But it reminds me of a quote from last year, about Trump. “bad for the country, but great for CBS”. (something like that).
Association is not causation. To be sure, Trump is a horrible president, an awful human being, and he carries the torch for many other awful human beings.
An environment with the immune system to ban this abusive user from Twitter, would also have the immune system to not have elected him president in the first place.
It may be too late to reinstate the fairness doctrine that Reagan gutted, but let’s not blame Trump for it. He is a symptom, not a cause. As easy a target as he is, banning him from Twitter would ultimately change nothing.