I somewhat doubt that medical analogy. Many of Trump's supporters are galvanized by the the conflict between Trump and the media, extending to the social media companies too. In my discussions I have not found many Trump supporters who think he is portrayed fairly in the media or treated fairly by Twitter and Facebook. Most also think important information is being suppressed.

The patient was sick before Trump, it will continue to be sick after he's gone (maybe even sicker).

So yeah, good luck believing the problem is behind.