"Surely you don't think that bigger market share always equals higher quality, do you?"
Not at all. But the bigger market share does mean Windows is more valuable to more consumers than OSX is. That was my point, contra to the delusions of some of an impending Mac takeover.
When Apple starts making software for all the computers in the world, maybe...
I think you're reading a lot into this conversation that isn't there.
We were discussing the relative quality of the two operating systems. Whatever prior baggage you have with Mac users is not terribly relevant.