Eh, outside of GPU there are some great deals, especially that 5600X3D bundle deal if you have a Microcenter near you, but you still need a GPU and pure cost considerations there's just no beating consoles right now. Add to that the fact that OLED HDTVs are cheaper and better than monitors, and most people are better off with a console. Seems like PS5 is the go to but you can literally buy all 3 major consoles for less than the price of a good budget gaming PC build.
And also doing builds, unless it's your hobby, isn't fun to most people. It's a novelty the first couple of times and then the vast majority of people would rather just not deal with it. I just did a new build in the past couple of days, and I know I'm good for another 6 years at least and by then who knows what the landscape and my own life looks like. Simple swaps like GPU are fine, maybe a new SSD, but motherboard and CPU, and getting that first post, wiring everything up, eeeeeh. There's usually some issue too. It makes sense to me that demand is dropping, a lot of people first got into doing a build in the last several years, now they're good and who knows if they come back.