The unemployment rate is 7.6% as of january, with the US total then being around 6.3%. Philadelphia was 11.2%. PA's was 7.3%.
Drugs are everywhere, it's the rust belt, and within city limits is fuckall compared to outside of it. Look
here, p.34, to see that Allegheny County is not markedly different from its neighbors.
There's niggers in every city, but I am surprised that you've managed to construct a sentence worse than they usually do.
Pittsburgh's median income is 27,419. For PA on the whole it's 31,099 and it's 26,211 for Philly.
There's no reason Pittsburgh can't manufacture again provided environmental regulation doesn't get in the way, should the country adopt a more protectionist stance (and the globe broadly buy less shit from China). We don't really have a NIMBY problem.