I don't know what you are talking about. The subscription service, sorry... optional subscription service, and not needing an Xbox to play Xbox games, are the same thing.
And I don't know why you are fighting this, are you saying that gamepass day 1 and the fact that everything is day 1 on the PC has no effect whatsoever on how actual Xbox hardware sales have been declining?
The problem with you here, and posters like you, is that you see criticism of MS Xbox strategy as wanting them to fail.
I don't know about others, but here is my take... there does not have to be an Xbox (in the traditional sense, which is a game console) for there to be competition. I personally feel, that Xbox, as it was conned, from day 1, was a mistake. that it's not what MS should have done. I feel, that if MS had instead made some sort of curated, lite version of Windows instead, that was focused on gaming, the living room, pc, photo/video editing...etc, and made that OS available to OEMs to make their own version of the Xbox they would have done better, so you would ave ad, windows home, windows pro, windows server, windows game (or something), and ultimately been bigger than sony or Nintendo ever could have been. Basically, the phrase gaming PC or gaming laptop, would have meant something completely different.
Proof of that is steam. Microsoft could have made an "Xbox", surface box, surface hub... And steam would never have been a thing. What's crazy about this, is that MS has been doing everything that is needed to make this possible, but has done it all separately and in isolation. MS literally left their own house, where they were strong already, and went to compete in a field where they had no presence, letting someone else come into said house and take over. If that is not stupid I don't know what is.
Don't misquote me... I said anyone that has a decent PC.
But let's not even do that, speak in absolutions as if everyone is the same, so a better question is this, if there are 70M people out there, that own a PC with at least a 2070 and up, and are in the market for a console, what percentage of that do you think would get an Xbox?
hint, this is a trick question.