Trump doesn't care. The american president is to stupid to understand foreign politics and isn't able to control his own ego. In the end he will just make some inappropriate jokes in his inner circle about Macron, Merkel and co., give them silly name and will try to call them out on another occasion in a "clever" way. His willingness to further provoke Iran shocked me even more then his inability to deal with NK.
By the way, whats with Trump giving foreign leaders stupid names like rocket man? Is he going to call Merkel Mrs.Superpower next, will Putin be Hackerman and Makron Dr.Strong Hand? Watch out World, or the US president will behave like a 5 years old and will give you super villain names.
Bush gave the world the super villain team name; Axis of Evil. Now Trump is pencilling in the roster. Rocket-Man is going to be the anchor to the cinematic universe, so naturally he debuts first.