I noticed that The New Republic has republished on the web an article by Booker T. Washington from 1915 titled "My View of Segregation Laws." It is of course a pay article, but seeing as how Booker T. was a public figure, I figured that his papers and articles could be found free of charge, and after 15 seconds of googling I found the piece at the University of Illinois Press website. Here are the major points at the end of Booker T's artice:

Summarizing the matter in the large, segregation is ill-advised because

1. It is unjust.
   
2. It invites other unjust measures.
   
3. It will not be productive of good, because practically every thoughtful negro resents its injustice and doubts its sincerity. Any race adjustment based on injustice finally defeats itself. The Civil War is the best illustration of what results where it is attempted to make wrong right or seem to be right.
   
4. It is unecessary.
   
5. It is inconsistent. The negro is segregated from his white neighbor, but white business men are not prevented from doing business in negro neighborhoods.
   
6. There has been no case of segregation of negroes in the United States that has not widened the breach between the two races. Wherever a form of segregation exists it will be found that it has been administered in such a way as to embitter the negro and harm more or less the moral fibre of the what man. That the negro does not express this constant sense of wrong is no proof that he does not feel it.
   

Timeless wisdom that could be transposed to different contemporary contexts with ease.