Re: Not going to happen
RE: "Chinese companies have been openly infringing copywrite products for decades. No companies have openly won any lawsuit against them. So why start now?"
I suspect this would be tariff barriers, not copyright (or patent) lawsuits.
To be honest several other countries have started with memory chips when building up local semiconductor fabs. Including Japan in the 80s as mentioned above, South Korea, and others. Even Britain's Inmos started with DRAM and SRAM as easier to get working first before logic. So working on local DRAM/NAND capacity is not a surprise.
Whether China succeeds in hurting other suppliers depends on whether their DRAM and NAND is cheaper than the existing companies which depends on who can keep in the lead for the newest technologies.