That's not exactly true. In fact, this type of polarizing all-issues-or-none mentality is why those of us in the middle of most issues have no where to vote.
There is a strong argument being made that gun crime in the US is largely a product of southern hick mentality. Basically, a bunch of billy bad asses with pride to protect.
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You've asked for answers to the inner city plight of mainly African Americans. If anyone here really wants to find the answers they will find the leading minds in this area have no clue how to solve the problem. The only sure fire answer is J-O-B-S. I've read a lot of cliche's thrown around in this thread including the family unit, education, etc. None of those work AT ALL without jobs.
Those blaming the break up of the AA family unit are as misguided as they come. AA's had a higher % of traditional family units than Caucasians before the widespread loss of manufacturing jobs in large city centers, and with an inability to follow these jobs to the more rural, cheap land areas. This isn't anything that can be correlated or sourced with a study of course, but the circumstantial evidence is as sound of an argument in support as it gets.
If America wants to put a dent in violence in the USA we need to declare targeted 'war' on Detroit, Chicago, etc. Make jobs. Provide protection. Make more jobs.
I'm not sure I believe all of this, but I do believe the lack of jobs in large areas could be a large contributing factor. Getting the poorest and most "high risk"(whether that be southern hick billybob, or gangsta T'Andre, or Xavier; dungeon master of narnia, and everything in between) employed and involved in the community would be a huge step toward seeing less shootings and violence in general.
How, exactly, to do that I'm not really sure. But this was a very solid contribution. Thank you, Franklin.