Diversity 101
Communication is only possible because of common objects and experiances. Words and symbols are used to represent ideas or concepts common to the communicators. Americans, regardless of subculture, will likely find it easier to communicate than an American and a Frenchman, who would find it easier to communicate that a human and a silicon based life form from the other side of the galaxy. The Americans have more shared reference points; common foods, music, holidays would mean a greater chance that any idea on one side is present on the other. However, throughout their lives Americans from different subcultures still have countless unique experiances that are not shared outside the culture and cannot be mutually accessed. Therefore you can never truly understand the sum total of my prespective, nor I yours, and whether you believe that or not doesn't make it any less true. Further that assumes that you want to try and understand my prospective, and act for some sort of mutual good, which in light of mankind's history is not a safe assumption. Getting along and respecting one another are noble goals but they are a far cry from truly, completely and viscerally understanding someone else. Diversity tends to insure that everyone has a stake in the welfare of the society, and that people's tendency to act in their own self interest can be relied on to ensure that prospectives reasonably close to any given individuals are represented."
Bunk.
But thanks for the lecture, Professor. I'm printing this up and putting it in my wallet so I can keep it close to my heart. It's interesting to know that because there are always barriers to complete understanding and identification I am compelled to make political choices based on race, ethnicity, and gender. I'll keep that in mind as a bright red flag on what a socialist America would look like--if I and people like myself were to let that happen.
You should read Peter Schwartz's essay on diversity and multiculturalism wherein he makes a cogent argument that such concepts are meant to destroy all values and all rational discrimination.