It's brilliant, actually. There is already a glut of NAND chips globally. Meanwhile, YMTC already has technological advantage but lack market share and production capacity. By shutting Micron out China just opened a huge market for de-Americanised NAND chips. Either Samsung & SK Hynix ditch US and share the Chinese market with YMTC, or they can enjoy competing with Micron for the shrinking slice of pie that is the Western market. And you can bet that there is no way that US government will let Micron be destroyed by South Koreans, so the axe will come down on the South Koreans once there is any perception of Micron getting outplayed. Even if they survive, they'll only be the next in line to be destroyed once YMTC swallows the Chinese domestic market and becoming a global giant in NAND. China just handed South Korea a big test: either ignore US and thrive, or surrender to US and risk losing one of your most important industries. In the bigger picture, I don't really think China cares if South Korea choses either way. But for Koreans, it's a matter of survival. Hence I think this is the reason why Yoon Suk Yeol was behaving like a cuck in front of Biden.