I don't believe anyone is born with better morals than other people. Someone's up-bringing can definitely give them a distorted lense that makes it much more difficult to make morally correct decisions, but the choice is still on the individual to make. And a lot of these people are deciding to shoot each other. Its not as if poverty makes you a criminal. Additionally, a lot of the people in these areas make decisions that one way or another put them in the scenario in which they have children which they cannot/refuse to properly parent. So what's ultimately the cause of the perpetuated violence? The cycle needs to be broken somewhere along the line, and policy moves slow.