A lot of neighborhoods in Detroit and places like Detroit would have once been considered by some to be like what suburban areas are now, nice neighborhoods that had houses with lawns, outside of downtown and the business/commercial/industrial areas. The neighborhoods didnt really decline, they did get rid of a lot of people the same way they got rid of a lot of white people after
World War 2 in the larger cities, and nothing and nobody replaced many of the people that left Detroit recently. A neighborhood that once was filled with Italians or Jews or another group might become a black neighborhood, but
gentrification is the same no matter what
the shade of skin of the people that live there, it is a human neighborhood.