All of those considerations are driven by politics, not technical matters. What if in Germany next election will be won by AfD, in France by Lepenists (Jordan Bardella is going for the win in 2027 election). And next US election will be won by Democrats. What's then? Moving back to the USA?
Data sovereignty, avoiding monopolistic dark patterns by big American corporations and choosing local business partners that you can keep accountable is not political, it’s logical choice.
The previous election in the US was won by the American version of AfD.
We can see from this discussion that a small number of Americans moved to European services.