The church I attended yesterday has people from 137 national backgrounds that speak 80 different languages worshiping shoulder to shoulder every Sunday. I dare suggest that in terms of inclusiveness of people of widely disparate socio-economic backgrounds and widely disparate ethnic backgrounds and widely disparate skin colors, no organization or group of people of a similar size comes even close. Yet I'm inclined to think that your definition of inclusiveness would tend to mean material that would exclude the entire group.
Is it reasonable to assert that if you mean your material to be inclusive, that it ought to be sensitive to what people believe rather than merely superficial things like what they look like?
Is material inclusive if it doesn't sensitively depict religious beliefs, or fails to sensitively depict sexuality? Suppose the game universally depicted members of one religion - say Islam or Hindu - in a negative light? Would that be inclusive? Suppose it used an overt pastiche of an extant religion as the basis of its cosmology? What about including the Hindu pantheon along side all the rest in the Deities and Demigods as just another mythology? Why was Hinduism in there? Was it simply because it was hard to imagine anyone today as being polytheistic?
What does it mean to be inclusive? Does it mean simply to try to attract a wide audience? Or does it mean to overtly depict a particular viewpoint so as to make those that hold that view point particularly comfortable?
In other words, do you by "inclusiveness" merely mean, "Makes me feel comfortable?"
For example, someone mentioned Monsterhearts. This game is inclusive of what and to whom? I have a hard time imagining that it is widely accepted that a game which portrays sexuality as merely a social weapon to manipulate other people and promiscuity as normal and expected behavior is broadly inclusive. For that matter, the subject matter that the game draws from is hardly without narrow stereotyping (which I felt only highlighted by the chargen and the artwork it used, note for example the preponderance of females that are overtly sexual objects), some of which is egregious enough that I think you'd see even some agreement between myself and say a radical feminist - which is something like me and Hussar being on the same page.
I would imagine most people I know would be deeply uncomfortable with such a game and acting out its precepts. I'm fairly sure that a game that mechanically coded the reverse set of morals would be denounced as insensitive and discriminatory regardless of how racially and ethnically diverse its characters were.