Disagree, trump is not the disease. He is the manifestation of the disease.
The disease is HIV, the concept, all cases of HIV, or rather, every HI virus in existance.
The manifestation is the HIV in a certain patient.
The symptoms are ... [symptoms of aids]
In Trumps case:
The disease is the erosion of truth, the political spectacle, and rebranded authoritanism (and millions of other factors). Those are primarily ideas, or ways of thinking. (They're the virus.)
The manifestation is Trump. (A patient taken over by a virus)
The symptons are tweets, fake news, etc. The actions taken by an infected person and the observable results of the manifestation.
We're both saying that Trump is not the root cause, that's not where our disagreement is. We're also both saying that without Trump, things would not instantly be better. The disagreement lies elsewhere
HIV is completely harmless in a vacuum, it can only thrive in an environment full of hosts. Exactly like a destructive idea or ideology, which can only thrive if there are fertile minds. Trump is not authoritarianism in itself or the erosion of truth in itself, he is the real life manifestation of those. His tweets are symptomatic.