Earlier quoted context omitted.
As he just found out, that's exactly what the EU can do. And as he's about to find out, the EU is way too important a market for the American economy to ignore or pull out of. Play on your neighbour's yard, obey their rules.
I think rather, that it is the EU who cannot live without US cloud services and AI-services. Imagine if the US, behind closed doors of course, threatened to cut off all cloud services. Huge parts of the public and private sector could collapse.
temporarily yes, then EU will be able to build them on its own.
But what would also collapse is trust in all US companies, whole world will start working on their own solutions, no more AWS/GCP/Azure hegemony in the world. Everyone would close their internet, just like China did and develop own solutions