

Ban American big tech? Okay, makes sense.
Create a European Silicon Valley? I don’t know about this one.
The reason China and the US are global leaders in technology is because of their complete disregard for human rights and the environment. Creating a “European Silicon Valley” would simply bring us down to their level, or at least closer. Mimicking America has never worked well for Europe. We need our own European systems born from our own European ideas.
It’s difficult to prove anything like that. From independent research we know that Intel, and likely AMD too with their counterpart, can remotely control your PC via IME. But they’ve never done that yet or have done so very secretly, because then a lot more people would know and that would be problematic.
Personally I think it’s reasonable to suspect that Microsoft has full capability to severely cripple your system at any given time. Maybe not ‘brick’ as that may be impossible without proprietary hardware inside the machine. However, even a simple Windows installation can mess up your UEFI. Given that, do you think that all those millions of fully secret lines of code cannot render you unable to use your PC, even if just temporarily?