There were black entrepreneurs and business owners but in general blacks did not have the same avenues for education and advancement that whites did.
All my family was poor until my great-grandparents’ or grandparents’ generation. It took another generation or two for blacks to have the same opportunities especially in the South.
Ask the Jews, the Italians, the Irish, the Polish. Heck ask the kids from Appalachia today.
The idea that every person had the same advantages or disadvantages because of skin shade is pretty much BS.
My family both the Appalachia and the American Indian side got their "advantages" the same way. The guys joined the military.
And any African American who joined the military at that same time would have gotten those same advantages.
Prior to LBJ's breaking up of the Black family they were advancing economically at a rate that surpassed that of "Whites".
You talk with American Blacks from that era and they will tell you how the Great Society tore the family unit apart.
And once the family as the building block of society goes away the society it's self begins to fall apart.