Chinese smartphone makers existence is totally dependent on US whims. Qualcomm monopolizes smartphone IC, and what is not Qualcomm is (Taiwan) Mediatek that will promptly fall in line to whatever decision US will take. Even China's Unisoc depends on TSMC for manufacturing.
Chinese smartphones are not presents in US market, so for US is not a big issue to kill them. Their consumers would not be affected. They don't care about the rest of the world.
Maybe in 2 years time it will be different, but today banning Micron will expose Chine to huge and devastating retaliation.
Us will not retaliate 1 vs 1, they will retaliate 100 vs 1. They can stop Intel, Nvidia, AMD, Qualcomm, etc to sell to China with devastating effect.
The "unfair" ban of Micron by the "ugly and bad" China will provide US the narrative to make this step acceptable to Americans...and US industry will have to accept that. Geopolitics is above economy.
I know this may be controversial here, but IMHO China today is not in a position to provoke US with unilateral chip bans.
i think the fact that Biden admin has shown its hands through its FT contact by pressing South Koreans show how weak their hand is here. I'm sure they are facing huge blowbacks right now from SIA over measures that are killing them in the midst of an industry wide slowdown.
It's important to also not overstate what America can do to a "peer adversary". Stopping Qualcomm sales to China would kill Qualcomm. At this point, most Chinese phone makers should have a year of CPUs in stock and can continue to buy from Mediatek. Getting other countries on board takes time. Any Chinese phone makers without emergency plans for a full ban scenario will get what they deserve. If China ends up losing Xiaomi in exchange for America losing Qualcomm, Nvidia & AMD, that's a fine exchange.
The issue with China's smartphone buildup is the lack of solid foundation. Rebuilding that smartphone top layer for China is easy. Rebuilding the upstream supply chain for America will be much harder.
btw, here is Micron situation
revenue down 53% YoY on its most recent quarter
Have fun losing another 1/4 off that for being a sleazy company
If Chinese gov't found something entirely inappropriate with Micron, do you think they should do nothing about it or expose their actions to the world?