When i read "here's how i choose..." At no point did i engage with it under anything other than "this is what some random dude does once every 5 years" Let him pick his cpu how he does it. Youre overreacting, and frankly over emphasizing things that dont matter like needing vcache or avx512 or misapprehending his own price points

How many people who buy desktop DIY systems don’t care about gaming performance?

That market is like 90% gamers at least.

3D v-cache is a key feature for that audience. It makes gaming performance significantly better.