Note that Trump managed to alienate Stubb, Merz and Meloni by now. I left out Macron, as the rift with Macron came earlier. In my view, it is quite over now. I don't expect Merz trying to flatter the American president, nor do I expect Europe to accept further extortion.
I can’t imagine what (and how long) it might take for the USA to regain any credibility as a reliable party to negotiate anything with.
We can't come back from this.