Once a country's industry is at a level where it is really limited by capital, not know how, sanctions just cause it to focus on putting capital into the sector. Kioxia is correct, China may have an intermediate slow down in it's semiconductor sector, but if it's government decides to throw money at it, not only will it still get to where it wants, but it will develop all the competing supporting technologies like mask aligners. It's not like they don't know the Physics. And once they develop their own support technology, those support tech companies will compete on a global stage. Long term, a loosing strategy.