A new administration can not promise that somebody like Donald Trump will never be elected again. That's what it would take to repair this relationship.
But at this point, Trump has been re-elected with a greater margin so in terms of national interests one needs to assume the worst case (i.e. these tariffs/behaviour aren't going away).
Would it be better if they did? I think so, but as a European (but very very exposed to the US) I don't think that's an economically rational way to plan.