I like gaming on PC, but I don't think console gamers have to swap systems. People can like consoles for any number of reasons from cost, to positive brand association. As long as they're happy, and can game the way they want, that's all that matters!
Convenience is what make people like consoles.
Play games on PC is not the same experience than play games on consoles.
Since place, position (I know people can put a PC like a console in the living room but most uses the PC for work tasks that are tied to a desk and chair) until the easy to use without addictions steps.
Even the devices attached to use in a living room works different from the ones attached to use in a PC.
TVs and monitors are different since how they deal with the input signal, passing by the interface and assists, until how they display the image on screen.
You can use a monitor as a TV? Yes, but you will have to deal with several issues and incompatibilities and even so the image will not be like TV (a monitor needs a PC signal to shows everything it can... it doesn't work well with a direct video signal like console, cable box, etc.... in simple terms you need a PC to do the post processing while the TV do everything to you).
The same way you don't use a monitor in a living room.
You don't use a PC in a living room.
Unless you don't care about convenience and like to deal with all the issues you will have with that setup.
And before people say but Steam Deck with Steam OS is like a console... it is not... the amount of issues you will have with Steam Deck with games, or setup it with your TV, is something you don't find in a console.
TV, console, soundbar/home are all connected by the same standards.