There have been a couple of recent documentaries that have taken a hard look at the old "Green Book" days. In addition to less crime and civil unrest, most minorities did better economically back then. While they did not have big sports and entertainment millionaires, there were a lot of successful mom and pop minority businesses that have since disappeared.For the past few years the "desire" of minority people seem to be returning to a self-imposed segregation atmosphere. If that's what they want, I see no problem with it at all. I grew up in the time of segregation, and we didn't have the crime and violence we have now. As long as it's voluntary, let it happen. People are happier among their own kind.
The following facts are often cited. They may not be entirely accurate, but the phenomenon they describe is real: On average, a dollar earned in the Asian community stays in the Asian community for 28 days. In the Jewish community, 19 days. But a dollar earned in the black community only stays in the community about six hours. It is impossible to buy all the goods and services the average person needs and wants in the black community, which is not true of the other two minority communities. My guess is you can buy most of the goods and services the average person needs and wants in the Hispanic community also.
I am not for legal segregation at all, but ironically segregation supported a black economy. When segregation went away, people in that economy abandoned it almost immediately. The other minority economic communities saw the value in hanging on to their economies even after they didn't have to.