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I don't think this will help pricing or availability much either. LTT did a video on this topic somewhat recently and it turns out a lot of the reasons that you can't get a card right now is related to chip shortages and people (yes, regular gaming enthusiasts) buying any card they can find. Even cards that already have terrible mining efficiency are scarce.

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Unless the miners are cutting off the supply at the silicon production level. What's to stop Antminer (or any other mining asic company) from paying 10x as much for a majority of TSMC capacity, RTX and Ryzen supply be damned.

Most of TSMC's capacity is allocated years ahead of time. They're contractually obligated to supply AMD wafers at a predetermined price and volume.

Also, GPUs are pretty good at mining Ethereum. ASICs are only about 2x as efficient, many miners would rather have the security of knowing they can always sell their GPUs to gamers if it all comes crashing down.

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