Substitute black for poor and ****less. If you don't believe me go on a tour of predominantly white council estates pretty much anywhere but inner London. For extra credit, visit Scotland and Northern Ireland.
Yes but.
There are also many white urban areas where white people do not live in chav infested slums. This doesnt seem to be the case with Black majority neighbourhoods.
The problem in the US (and possibly in the UK too, though I cannot find the corresponding UK figures) is that the liklyhood of doing prison time at some point in their life is 3-5% for Whites, 10-15% for non-Black, Non-Whites, and 30-40% for Blacks!
With this level of chronic endemic criminality, it is almost impossible for Black majority neighbourhoods to be anything other than crime infested slums, wherever they are!