Because... AMD hasn't made a better card than Nvidia in recent memory. They came close to it with RDNA 2 and Navi 21, but... the last time they truly had a GPU that beat the pants out of NV's flagship while being cheaper was with Hawaii back in 2013 (290X vs. Titan)
390X: Grenada was a memory doubled re-release of Hawaii, it offered absolutely nothing new. Most of its proposal hinged on value, and the fact that this was a very good card vs. the GTX 980 despite being earlier generation technology.
Fury X: Despite the new tech behind the Fiji core, 4 GB hampered the card, poorly marketed (4 GB HBM = 12 GB GDDR5). Driver support dropped unceremoniously 6 years to the clock.
Polaris: GTX 980-like gaming performance, years behind. Its appeal to gamers hinged solely on price, eventually mass marketed to cryptocurrency miners. "Wait for Vega"
Vega and VII: "Poor Volta", pretty much got bodied by their Pascal contemporaries, especially the 1080 Ti. "Wait for RDNA"
5700 XT: Hilariously problematic silicon, black screen issues that took driver devs a full year to debug and workaround, several hardware steppings issued throughout its production run, still got bodied by Turing, sure it was far more affordable, but it's downlevel hardware, doesn't qualify for DirectX 12 Ultimate... you can argue Turing + RT isn't worth it all day, won't change that
6900 XT: Great card, sadly released under horrible market conditions, this card was far more of a hit than a miss, and I'd say the best thing AMD has released since Hawaii
7900 XTX: Buggy silicon, undercooked and poorly supported by the drivers, the "fine wine" was really AMD taking a couple of years of driver releases to get to run more or less as it was intended to, owners were subject to ridiculously shoddy QA slipups like the VAC antilag incident
I just can't follow this "better cheaper cards than Nvidia" because it frankly, hasn't happened in practically 12 years
Normies very much do buy GPUs, and build gaming PCs. It's not nearly as gatekept as one would argue, stuff is made to be easy to access nowadays and there's lots of tech resources to help those who are new, from forums to Discord to YouTube.
MBA cards have been available even here in Brazil. In fact, you can still buy new in box, AMD-branded 6750 XT's here. Nvidia FE availability is bad, sure, I'll agree. But they do have them available.
Projetada para rodar jogos modernos em alta resolução (1440p) com configurações exigentes. Compre já!
www.kabum.com.br
As for the cult... I won't go there. It's just needless flinging.