The thing is, what's making prices increase on consoles is also increasing the prices on PCs. That's what people are failing to talk about lol. It's not like GPUs, graphic cards, CPus, etc are all cheap for PC and brands like Sony are the only ones having trouble to get less expensive. Hell no one even includes a controller when talking about building a PC but that's also something to be considered and they aren't cheap nowadays.
The price of the PC components haven't really gone up though. Is the 4000 series more expensive than previous series? Sure. But the price of the 4070 or 4080 haven't been increased after they came out.
So if you are comparing a 67k yen PS5 to a 87k yen GPU (4070 for example) you might decide to just get a PS5. But when the equation becomes 80k PS5 to 87k GPU, maybe some people decide to go down the PC route instead.
Remember a lot of people might already have PCs that just need some components upgraded and don't need a new case, SSD, etc.
A lot of people might also need PCs or laptops for work or school. In my university a laptop was a requirement. So maybe instead of spending 80k on a PS5 too, they just decide to spend an extra 80k on the PC/laptop they were already going to get to play games as well.
The idea is that PCs become more attractive by comparison.
People aren't arguing that it is cheaper to build a PS5 equivalent PC from scratch instead of buying a PS5.