Before this year, the thought of an entirely arbitrary block to things like American cloud services by America to its European allies would have seemed extremely unlikely. It would make no sense, the damage to America and it's GDP would far outweigh any any political benefit.

All of those reasons still hold true, but I absolutely assure you, European governments and companies all over have that possibility firmly in their risk portfolio now. America tells microsoft to immediately not only stop selling products in Europe, but disable those already in use? Ditto Google. Ditto Apple. Ditto all the hundreds of IT hardware producers that are American. Want to cripple a foreign government that uses MS Office? Remotely disable it. job done. Sure, it would be illegal, but America's government has no respect for law.

(Even before this, several European governments were using open source (Germany, France, Austria, Portugal - there's a list but this is less about idealism and more about protecting themselves from the unpredictable as well as not trusting America with their data any more. Every thing like this can only be seen as non Americans distancing themselves from America every way they can, and with good reason.)