Earlier quoted context omitted.
There are a few (mostly Bitcoin forks), and you can probably make some profit mining them, but they are not big enough to have a significant impact on the global demand for GPUs. At this point, most crypto projects with any real traction (with the obvious exception of Bitcoin) are either ERC-20 tokens running on Ethereum, or other PoS chains that claim to be better than Ethereum (i.e. Cardano). Bitcoin isn't mined wi…
As I said, there are plenty of profitable coins for GPU mining besides Ethereum [0]. Ethereum moving to PoS will not move the needle, people will just move on to something else. [0]: https://whattomine.com/
Sure, some of it will move to other currencies, but my guess would be it won't be anywhere near 100% as you're suggesting.