Earlier quoted context omitted.
OS X generally has terrible 3D support and the same hardware on Windows will perform much better. That's unfortunate but no reason to go to court for. Apple writes their own device drivers and they write them to the extend their software and hardware needs it and no step further.
It seems to be intentional though. I seem to recall Microsoft and IBM got into big trouble for anti-competitive conduct. This is the sort of thing that brings about anti-trust suits.
I fail to see where your frustration is coming from, or why it's targeted at Apple. It's most likely just a calculated cost savings measure.