I never claimed MacOS was inaccessible. I don't even use MacOS, and haven't since about 10.1. I don't believe I've made any claims about MacOS at all, actually.
I don't get where you think that I am claiming these operating systems lack accessibility features. That's an invention of yours.
I do make the verifiable claim that they lack the configurability of Windows 3 as regards font and color choices throughout the UI, and further that this is in fact an accessibility feature in itself.
Windows 10, for instance, only allows you to change the "accent color" and select either "light mode" or "dark mode". While it does allow a change in font size, if there's a place in its settings dialogs to change the default font itself I couldn't find it, although I did find a place to change it in the registry.
No, that is not what I'm saying. I'm saying that this kind of configurability acts as an additional accessibility feature, and further could probably serve as a replacement for bespoke accessibility features these operating systems do have (like "dark mode" vs "light mode").
Arbitrary customization of color schemes may be useful as an accessibility feature for certain conditions.
However nobody has explained how they offer an accessibility benefit for any actual condition that isn’t covered by the existing accessibility features.
It would be good if someone could actually point to an example of this. Otherwise it really is just speculation.
General configurability of themes is definitely not a substitute for bespoke accessibility features, even though it might be a workaround in some cases.
