To be fair, the ICC should not have existed in the first place. It was created to persecute the Serbs and then other people that were not liked by Europe mostly.
Trump made that whole arrangement cracking a little bit, but I still think it's mostly just the optics of it all they are still loyal servants. Nobody in Europe that matters gives a shit about Karim Khan or Francesca Albanese getting debanked and sanctioned, they would and love to do it themselves.