Just how much rallying and walking do they think it will take to get the gangs to find honest pursuits? I know how much I think it'll take: more than is possible. Gangs will continue to shoot up neighborhoods until it's shown forcefully to them that that isn't going to be tolerated.
One neighborhood in Arizona has the right idea. I looked for a reference online, but was unsuccessful. It seems that a carload of gangbangers tried a drive-by shooting. They were met by return fire from multiple houses. The car crashed into a light pole and caught fire, and at least one gangbanger was heard screaming as he burned to death. It seems the fire department wasn't called until it was far too late.
That neighborhood hasn't had any trouble with gangs since.
Gangs are conducting war on honest people. It's time that the honest people treated it as a war and started answering in the only language the gangs understand: hot lead.