Hmm I seem to recall you believing Trump to be the problem, not a culmination of American structural problems going back decades.
As far as your second point goes I'm worried for our democracy. The foundation is set.
Trump is a special kind of shitbag for sure, but also a logical extension of the Tea Party and reality television and the death of American conservatism. In terms of "culmination of American structural problems," Trump is a symptom that is also a disease, but I see those things as separate in the sense that Trump was elected for a reason, and capitalized on the political state of America which preceded him.
Like, Mitch McConnell isn't a Trump problem, and Paul Ryan wasn't a Trump problem. I don't think American conservatism was anywhere close to healthy before the latest movement. I think under somebody like Romney, we wouldn't need to ask questions like the OP asks, but when Romney lost, it's like the party just gave up on everything. Not that Romney was a saint, but he was both an antidote to Trumpism and a conservative that wasn't among the worst (notably he was not a racist, which is really important, though being Mormon with binders full of women [kidding], maybe a bit of a misogynist).
Trump functions like a power-charging hub for all of the ills of the right. The thieves, racists, woman haters, zealots, education haters, climate deniers - hell, everybody except military hawks - they all charge their batteries on him.
So to get to the point of what you said, it's complicated and Trump is both a serious new problem and a result of problems that preceded him. I'm rambling a bit but hope this makes sense. And sorry if this derails a bit, but it's a major reason for asking this thread's question.