The thing is that the cat is out of the bag now. EU alternatives are popping up. Governmental services are moving to national or regional (EU) services/providers.

There is a difference between a nation (USA) and its president having the theoretical power to shut down whole parts of your infrastructure which everyone agrees “that would never happen” versus it having happened multiple times already. Then the setting up of separate boards, basically retreating from NATO/NAVO, the military threat against Greenland. It doesn’t inspire confidence. He has been breaking with “things that you just don’t do” for a while now.