Say it louder for the folks in the back!
For the mainstream and casual types yes, the ease of play and price are going to win out at the end of the day. But I wouldn't say PC gaming is as laborious as it used to be, not by a long shot. You've got tons of console-like PC boxes that make setting them up in a living room a non-issue. You can build yourself a pretty solid gaming PC with a mini-ITX form factor and console-like parts, plus the OS, for maybe only a few hundred bucks more than the consoles cost, and that was even somewhat true when PS5 & Series X launched. A modest budget of $650 or so should get the job done, and you get a lot more freedom in how to use that PC box, versus a console.
A lot of hardcore & core gamers aren't going to be fussed with building a PC box like that, because I don't think all of them actually care to the highest degree about the best graphics. Just performance comparable to the new consoles of the time would do, and shopping around for deals and whatnot, can keep a custom build under $1K easily. And the thing with PC is, for the ones who want the pinnacle performance...they can just buy their way to it. Not an option with console unless there's a mid-gen refresh but even that will not offer the same upward mobility as PC does for chasing power.
I get what you mean. However, while the total number of PS gamers who'd make the swap if exclusives on the console were no longer a thing is small, I don't think we've seen just how large that slice actually is (even if relatively speaking it's small) because Sony haven't pursued such a strategy quite yet. People such as yourself are maybe only a small slice of larger slice, and Sony scaling back on genuine console exclusives (either Day 1 on PC for non-GaaS titles or cutting down the port window to a few months/1-year) will show how many more people such as yourself there are in the PS ecosystem.
And one thing I'm sure you and they all have in common, is that you spend (spent) a lot of money on PlayStation consoles and getting your software, services, peripherals etc. there, more than the average gamer. So money-wise you are more valuable to companies like Sony than the people who buy the console at a cheaper price later on (the mainstream & casual types), or only buy a single game a year, etc. If enough of those type of people decide to go PC/Steam over a PlayStation, Sony will notice the revenue drop-off even if they continue buying Sony's 1P games on Steam.