Why is gang violence somehow more acceptable than "regular" violence? Minors are victims of "gang violence" too.
And TBH, I don't really give a shit about the age of the victims. It's the same result, a life ended prematurely by someone else. While you can make an argument that and adult who died by gun violence got more of a chance at life than child who died from the same, you can't really say that the crime is any different.
Murder is murder. Against a child, against an 40-something, and against an elderly person. What is taken away remains the same. Trying to make the murder of children worse only serves to decrease the severity of murder of an elderly person.