My argument was that it makes absolutely no sense to develop an MFC app on OSX. I asumeyou'll want to, you know, run the thing, right? well get out your Windows VM!
C'mon, how is this not completely obvious...
Yet Microsoft supports, and was investing heavily in, iOS development in Visual Studio on Windows...
As long as you have a Mac and an iOS device to connect to.
None, because you can't, the same reason you don't see many iOS developers using windows. I don't know if there are many people that want to work that way or if it's worth supporting, but your current argument is circular reasoning at it's finest.