The US and Europe are sanctioning China's advance chip production, but they also say that most of that is useless for current uses and that China's more common and less advanced chips are used everywhere from consumer to military tech, and they're scared that China will use production against the west during war.
I'm no ivy league economist or west point tactician, but it seems pissing off the largest producers of your military tech for no reason while not building productive forces of your own is an extremely poor strategy.
for war you don't need leading edge chips so yeah that logic doesn't make sense. china's doing a decent job of making memory and controllers n stuff for SSDs. I was thinking about buying a Chinese SSD from China but then I realized I have enough storage space as is. i hope one day they can make competitive GPUs :)