The actual valuable technology is the EUV light source tech developed in California by an American company that ASML acquired in 2013 under a strict technology export agreement with the US government. It was not developed in Europe.
[1] https://www.cymer.com/
[2] https://www.asml.com/en/company/about-asml/cymer
Yet the US is unable to actually build those machines (neither can Korea, Japan or Taiwan - apparently China will soon)
Yet the US is unable to actually build those machines (neither can Korea, Japan or Taiwan - apparently China will soon)