He is right on some level. My family members are constantly dealing with malware. As a gamer, I constantly need to deal with constant driver updates. Sometimes bad drivers that I need to uninstall and use drivers two, three, or four releases ago in order for my card to work. That is not specifically a Windows issue. But when I run games on OS X, I do not need to deal with that stuff.
That is hardly a fair or complete statement. As a "gamer" on Windows, I'm sure you appreciate the granularity of tweaking and optimizing your rig for maximum frame rates. A by-product of that is some degree of instability and constant driver updates. That's part of the fun. On OS X, you can't do the same thing. You get what you get and you game with it. Hardly an apples-to-Apples comparison, so let's be clear on that.