Consoles are usually sold at cost or even at a loss because the profit is in games and services, not the consoles. In addition, all modern consoles use PC parts or cut-down cheaper versions of PC parts so development costs are minimal. The whole R&D cost is placed on PCs. So maybe console gamers should pay a tax to PC gamers, since it's PC gamers who make consoles possible at a lower price
Also, I wouldn't trust some random vid you can't remember and some specs you can't remember. Bit short on details and checking there. I've just done some very quick checking and you're way out on SSD speed (it's claimed to be up to 2.4GBps, not 7) and resolution/fps (it's claimed to be 4K at 60fps, not 120). Graphics are handled by midrange in the next gen of AMD cards, which should be a fair bit cheaper than a 2080Ti when it's released. The next gen of consoles will be very high spec for the price, that's for sure.
The main reason I game on PC isn't performance. It's a mouse and keyboard and a mostly open system. For the time being, anyway.