Linux was inspired by Minix which just so happens to be what by definition is Unix like; not Linux itself.
Linux is a monolithic kernel and that's about as similar as it gets,
As for why software isn't on Linux and on OS X I could also argue that I can't run Gnome 3, KDE, Cinnamon, Conky, nor any other program that directly affects os x.
Don't even get me started with music production. On a Linux based sysyem I have the option of a low latency kernel, JACK, Audacity, Guitarix, Hydrogen, etc. I've tried music production on a Windows based machine; it is no where near as flexible without constantly importing files from other programs.
MS Office? LibreOffice is FREE and works just as well, if not better. I used it an entire semester at school and it does the job just fine.
I can't argue with video or photo production though lol. I use Pitivi, GIMP, Inkscape, and for 3d modeling Blender. Never had an issue.
As for wine and other layers, I don't find them too complex whatsoever. Pretty soon Darling will release and I'll be able to run Final Cut lol.
OS X isn't open; I can't submit a bug amd have it fixed in minutes. On Linux I can.
I will praise OS X for accessibility though. Th best damn magnifier I've ever used is on OS X.
I understand your argument, and your stance; I myself want to eventually get a MacBook, but to speak lower of competing operating systems doesn't get you anywhere. Show me what OS X itself has to offer; not what it's competition doesn't.