Pretty hard to make that argument about people who explicitly want to get rid of Apple’s OS from their hardware.
It's almost never pragmatic to assume that your own suffering will necessarily yield a better outcome. Maybe your smoking hot partner eventually becomes a better person, but is it worth investing 10 years of mental anguish for the chance of getting there? A real pragmatist starts dating again, which forces their partner to stop taking themselves for granted. If Apple wasn't a literal monopoly, their customers could be holding them over a barrel and forcing their software products to compete naturally.
macOS sucks because their customers have an unhealthy emotional attachment to Apple. Americans forfeit their opportunity to regulate Apple into real competition, and now we are paying the price with top-down app censorship, UI disaster updates and bugfixes that add more bugs than fixes.
Then they have to take the whole package or nothing at all. You can’t swap your partner’s brain. But you can change your OS on your computer. These things are not comparable.
> macOS sucks because their customers have an unhealthy emotional attachment to Apple.
No, macOS (currently) sucks because Apple is doing a bad job. Their customers’ relationship to the company is orthogonal to the OS’ quality.
(I love macOS, though I also have a ThinkPad with NixOS.)
Like I said, Apple could be a real player... if they had any incentive to compete.