Edit: And if being able to script is your proof that everyone has full control over OS X, you also need to share your definition of "full" as it definitely doesn't mean what you think it means.
What window management features, exactly, are impossible to implement because OSX is proprietary?
You obviously have a visceral and emotional opposition to closed-source software, and I respect that, but what exactly is the functionality that you need that OSX can't be made to provide?
Edit: And if being able to script is your proof that everyone has full control over OS X, you also need to share your definition of "full" as it definitely doesn't mean what you think it means.