Here, in the German press, I recently heard Trump described as not being the catastrophe itself, he rather is just a symptom of a deep rift going through US society.
Judging by what he did during his first term: Regarding Germany nothing much happened that was any worse than whatever Obama or grampa Biden did during the adjacent terms. A lot of isolationism happened under Biden. In the term before Trump, a lot of murdering people (including a lot of "collateral damage, aka murderings of civilists") happened under Obama with his over the top employment of drone warfare.
I don't see much of a difference by whoever becomes the next ~~GRÖFAZ~~ POTUS.
Your first ammendment guarantees that everybody can weigh in and say that your foreign policies suck dicks. Wether you like it or not.