You've said a lot so excuse myself if I don't address all your points or address them enough.

>proton

Yes, probably 'good enough' at the scale they have as an alternative.

>Obviously, this will never happen.

Hard sell for sure vs the status quo.

>Obviously, this will never happen. So either the government makes such services, and makes them well enough to seriously compete or implements a "great firewall of Europe" Chinese/Russian style and forces the change.

Consumer change of habits but obviously having alternatives count.

>Is there any place left in the EU

Is definitely a problem wrt dependency. Also outages from Cloudflare etc suggest further dependency and its all about convenience.

>The only solution is that all European governments force themselves to ONLY work through "sovereign" channels not dependent on American companies.

They don't. The US companies have gradually pushed the envelope and unfortunately EU reaction has resulted in time wasting cookie modals etc for front end users. There is surely a measure of lost EU business opportunity vs what is actually happening, a wholesale copyright and privacy override. Google was bad enough before AI but now it's just wholesale stealing of everyone's everything.