Most 'nixes ship with GPL software, even SCO's offerings.
Not much. As I'm sure you would know, Stallman's "GNU" stands for "GNU's Not Unix". GNU software is designed "to make proprietary software obsolete" remember too. Something you don't seem to have a problem with. In fact you obviously prefer it. Where would you prefer to use Unix, specifically Solaris or OSX? Why are you supporting Stallman endlessly, when these other choices exist?