Right, don't underestimate Samsung - they have top tier fabs and manufacture a lot of chips. If the world has all their eggs in the basket of one company that company is ASML.
Right, so our eggs are not all in one basket, but in two. One claimed as rebel territory by the CCP and one still technically at war with a nuclear-armed hermit kingdom.
This is an absurd amount of reductionism. The chances of actual military conflict in both the Korean Peninsula and Taiwan are objectively much higher than most other places around the world. Having both of the top tier semiconductor manufacturers reside in such a hotspot is absolutely a cause for concern.