> AMD has the hardware but the support for HPC is non-existent outside of the joke that is bliss and AOCL.

You are probably two years behind the state of the art. The world's largest supercomputer, OLCF's Frontier, runs AMD CPUs and GPUs. It's emphatically using ROCm, not just BLIS and AOCL. See for example: https://docs.olcf.ornl.gov/systems/frontier_user_guide.html

That's hardly non-existent support for HPC.