> they will just discontinue their access to hardware
Yup - which is exactly what is going on in the cloud space right now.
Because AWS and GCP chose to innovate with their own accelerators, Nvidia heavily favoured Azure for a while. Recently, GCP seem to have capitulated somehow and so are back on the bandwagon. Oracle, of course, never had any hope of success in cloud without leaning on some form of non-technical manipulation, which is why they were the first on board with DGX Cloud.
Sadly I don't see AMD as the solution, since they too have associated themselves more with Azure than the other clouds.