i thinks its more like the italians used to live in all the inner cities that you mentioned, but as they became more assimilated into society, they moved out of the cities and into the suburbs. and when they were gone, all the blacks moved in, and naturally turned the cities into the shitholes they are today.

"Let me tell you something. There's no nobility in poverty. I've been a poor man, and I've been a rich man. And I choose rich every fucking time."

-Jordan Belfort