If the problem were access to guns violence would be evenly distributed among people with legal access and concentrated among those with the most money to buy yhem. That isn't thr case. Instead, violence is concentrated in areas with the hardest legal access among prohibited possessors.

It's a problem of a subculture of violence, preying primarily on itself, who are accessing guns via already illegal means that no proposed legislation can be shown to have a chance of effecting. Blaming guns, much less legal access to them, is both puerile -and- distracts from addressing the actual root social and cultural causes of violence.