American companies have a pronounced preference for business-to-business products, where they can sell large quantities in bulk and at very large profit margins that would not be accepted by small businesses or individual users, who spend their own money, instead of spending the money of an anonymous employer.
If that is the only way for them to be profitable, good for them. However such policies do not deserve respect. They demonstrate the inefficiencies in the management of these companies, which prevent them from competing efficiently in markets for low-margin commodity products.
From my experience, I am pretty certain that a smaller die version of the AMD "datacenter" GPUs could be made and it could be profitable, like such GPUs were a decade ago, when AMD was still making them. However today they no longer have any incentive to do such things, as they are content with selling a smaller number of units, but with much higher margins, and they do not feel any pressure to tighten their costs.
Fortunately at least in CPUs there has been a steady progress and AMD Zen 5 has been a great leap in floating-point throughput, exceeding the performance of older GPUs.
I am not blaming vendors for not building the product that I desire, but I am disappointed that years ago they have fooled me to waste time in porting applications to their products, which I bought instead of spending money for something else, but then they have discontinued such products, with no upgrade path.
Because I am old enough to remember what happened 15 to 20 years ago, I am annoyed about the hypocrisy of some discourses of the NVIDIA CEO, which have been repeated for several years after introducing CUDA, which were more or less equivalent with promises that the goal of NVIDIA is to put a "supercomputer" on the desk of everyone, only for him to pivot completely from these claims and remove FP64 from "consumer" GPUs, in order to be able to sell "enterprise" GPUs at inflated prices. Then soon this prompted AMD to imitate the same strategy.