Back to the OP: AMD is always a day late and a dollar short.
ATI managed to trade blows with NV because back then all they had to focus on was gaming. If you're card gamed we'll, then it did all the productivity stuff well too and that was that. twas a simpler time.
With the DAAMIT merger and unified programmable shaders, things really went off the rails. Nvidia had vision, and saw their GPUs as processors equal and superior to any x86 chip produced by Intel or AMD. AMD on the other hand saw a GPU: a neat toy for playing vidjagayms faster and faster.
NV went all in on CUDA, on PhysX. They overbuilt their processors to be the best, not the cheapest or most efficient, and then made the industry bend to their will (see Tessellation).
Even when AMD got a whiff of what NV was cooking, they only ever thought in terms of their core CPU business with stuff like heterogenous computing. "How will the GPU help us make better CPUs" and never "what is the inherent potential in this massive computing array technology we have here".
NV kept pushing and pulling rabbits out of its hat: the Titan prosumer line, CUDA accelerated everything, incredible efficiency increases with Maxwell, they had a juggernaut of a hypetrain behind them that is still barreling down on us. Now we have "RTX" and "DLSS" and "NERFs". Are 95% of PC users ever going to care about the cutting edge stuff NV is doing? Nope. Does it feel cool to be part of the crowd that's doing it? Yep.
AMD is always following NV's lead. Hell after however many years AMD still doesn't have it's **** together with something like CUDA. They can't even pin down a gosh dang naming scheme, while NV has been mostly consistant since the GTX 2xx line. They bring these pristine proprietary techs down to the unwashed masses, never quite as polished or refined (even if functionally, practically, indestinguishable from the NV equivalent). Freesync is a poor man's Gsync. Rocm is a poor man's CUDA. FSR is a poor man's DLSS.
At the end of the day, people that use AMD cards are the less fortunate that couldn't make it into the walled garden of NV Valhalla. Everyone wants NV. And for everyone else, there is AMD.
That is why AMD are treated like they have AIDS.