I can't believe I agree with Stanley Fish:

In short, diversity � and I would say the same for its close relatives � openness, balance and inclusiveness � is a political rather than a substantive rallying cry. You call for diversity when your enemies dominate the playing field. You preach balance when the numbers are against you; you tout openness when you and your friends have been shut out.

Once the resonant phrases have had the desired effect and remade the world so it suits you just fine, the universalist vocabulary of diversity, balance and openness is discarded, only to be picked up by those who would deploy it in the service of an agenda you would never sign on to.