I certainly don't agree with the politics of cities like Baltimore. One doesn't need to get into any substance to discern that corruption is off the charts and is just another impediment to competent governance.
The problem with the racial angle is that culture matters. One reason Theodore Dalrymple (pseudonym) raises such ire in progressives is that he speaks to life at the bottom, where people make one lousy choice after another and seem perplexed their outcomes are so poor. Dalyrymple doesn't speak about blacks, as he recounts his experiences with lower class whites in the UK. I am not sure Dalrymple has any solutions, but addressing the culture does provide a certain value. It really helps punch through the stereotype of the poor as lazy. If you make enough lousy decisions, life's prospects are very limited. And again, he doesn't approach matters from a racial angle, but a behavioral one.
In any event, the 70's and 80's generation really didn't see what was coming when all of those industrial jobs melted away. Blacks migrated to take those jobs - Bethlehem Steel employed 30,000 in Baltimore but its impact on employment throughout the City was much greater - and there is nothing to replace it - especially in a knowledge based economy where education and skills are really important. Once behind, it is not easy to catch up. And the violent crime breeds its own segregation, There are areas of Baltimore that are so isolated that it is difficult to make progress. Again, there is value to speaking to the facts, both good and bad.