NO ONE cares about AI or having 8 streams on, people who buy geforce and radeon care about gaming performance, value, longevity, quality perception.
No one's even heard of CUDA who is a casual gaming enthusiast, hell even professional forumers and hardware enthusiasts know very little about CUDA, let alone have any use of it.
For real, the biggest use I've had of CUDA is using it with a chess engine on my desktop, which now calculates to 30 depth in 20 seconds, instead of 30 seconds, big deal.
This is the type of extreme use case of CUDA. Plus AMD has the equivalent in rocm, yeah its not as fully fleshed out as cuda, but it does 95% of stuff at same level as cuda, that 5% extreme use case literally even professionals don't care that much.
Its all propaganda and bots pushing a narrative to close off people's minds and somehow project nvidia gpu's as somehow better, when they clearly are not. They are garbage value, garbage performance, garbage vram, garbage longevity, getting bigger, heavier, louder, hotter, etc...