A big part of the rational and moral justification for diversity initiatives and affirmative action programs, as I understand them, is as a means to help correct the history of institutional racism and discrimination in this country. So while the idea that meeting and working "with folks from all over the world—Croatia, France, Germany, Ireland, South Africa, the Philippines, Mexico, and others" is appealing, for me…
I think more emphasis should be given on the benefit that diversity brings to the organization. A university or a company with lots of young white middle-class people will miss a lot of ideias that people from other backgrounds might bring.
Diversity does increase innovation, but its a diversity of experience and a diversity of thought and not based on skin color and gender.