Meanwhile in reality they already have at least 28m DUV steppers indigenously built and are rumored to have a few 7nm capable DUV steppers doing shuttle runs. And are doing really neat things in the EUV space taking a different direction than ASML, essentially using a particle accelerator rather than a tin laser.
It's been clear now for over a decade that every time we cut them off from a technology they produce indigenous versions. We cut them off of chips to go in a supercomputer and within five years they had the world's fastest supercomputer on indigenous designed chips with Tianhe-2.