Agreed. EUV is not just ASML it is many highly specialized firms doing crazy things Zeiss for example makes lenses to sub atom accuracy... Mechanical placement machines in the nm range. The whole set up of EUV is crazy with droplets of tin and lasers so powerful that at one point they considered building free electron lasers (or linear accelerators) under fabs that happen to generate radiation. This is also why China will never catch up. It takes a world's worth of semi demand to make sub 7nm happen and China, for once, just isn't big enough...It may take 10+years even if it works.