There will be no independence of US tech as long as everyone in europe has google or apple in their pocket and most administrations have windows on their PC. But, at least in germany, ruling parties are very slow to notice this.
We had Nokia, destroyed by Microsoft back in early 2010s.
They destroyed themselves by missing the window for starting an entirely new smartphone ecosystem. They should've either released Lumia years earlier before the iPhone/Android duopoly got established, or made their OS capable of running Android apps (e.g. by being Android).