The beauty of being a US Citizen is that we honor the freedom of being different. On Memorial Day, think about what makes you disparate, and share how it helped you over time. I think that as a US Citizen we evolve into a different culture across timespans.
Disparity also occurs in family. This is why a comparison is not warranted. One may become disparate for many reasons that go far beyond genetics.
The beauty of being disparate is that we may honor it and learn from one another. It does not make you less than anyone else. It just means that we have different talents.