This line of discussion comes up often on HN, and it's really annoying. It's the equivalent of people bringing up nuclear warfare in geopolitics discussions.
Yes, people know we live in a globalized world, and yes, people know the US has ways to pressure Europe. The point of Europe's moves to host in Europe isn't to get immune from foreign influence ; it is to make interference a bit more costly and a bit less effective, in a way that doesn't cripple our society.
The first time I heard that the US was "requesting" (surely a gun-to-head moment) that the Dutch Gov't restrict ASML exports to China, personally, I was stunned. Sure, the Netherlands and US have incredibly strong political, economic, security, and historical bonds, but I never expected US to interfere so deep into the Netherlands. And yet, the Netherlands capitulated. (Please don't read this as a criticism of NL -- they are ultimately "Real Politik" due to their population size.) If NL can fall, then so can any other nation in Europe (or Northeast Asia: JP/KR/TW), except Belarus and Russia.