That's historically what happened when we had proper competition. Now we have a 3 party oligopoly and massive barriers to entry. Now at least 1 of the 3 is actively signalling than they're not going to not going to spend 100s of billions to expand fab capacity that will lower their profits because if one does it they'll all do it. It's a prisoner dilemma, and they're co-operating. When they co-operate we all lose.
The entry of Chinese DRAM into the market may spur increased competition. If not for competition's sake alone, for national security and domestic supply chain integrity concerns.