One of the greatest American ambassadors to the world was Louis Armstrong. He fought for integration while being criticized by white right-wing nuts as well as militant blacks who called him "Uncle Tom". He always championed integrated bands and lived by that. He was one of the greatest American musicians that ever lived in my opinion. I love jazz and I loved what he did.
This country was built on ethnic diversity. The white man stole from the Native American, Mexican and the Black People and exploited them without mercy. They nonetheless have always been the fabric of real America. Unfortunately, the US Constitution took its time to acknowledge this. If there is no ethnic diversity, there is no America...it would be a sham.
White folks would do well to learn from other cultures, colors and stop worrying about the so-called "browning" which is going to be a non-issue as races assimilate through intermarriage. A bigger problem today is biodiversity. Will mankind be around or will mankind dig its own grave?