There are many viruses in the world that don’t have a devastating effect on civilization. Whether confined to remote jungles, swamps or deserts, they are at home in their natural ecosystem, where their harm is limited.
That is Trump. As long as he remained in the worlds of business and entertainment, he might do some damage and have some negative effect, but it mostly remained in those spheres.
Then, through a series of unfortunate events, he escaped those environments and was inflicted on the world at large. Like a virus brought home from a jungle, once it spread, it appeared there was no stopping it. A new disease, we are unsure of treatment. We hardly even know what it is. All we know are its symptoms and impact, the likes of which we have never seen before.