Look at the history of inner-city gun violence in the late 1800s and early 1900s in Italian-American ghettos; my Italian forebears were attacked for being ethnically predisposed to violent crime, and in the early days it was mostly Italians against Italians, not Italians against others.
Today, look at the rising problem of Hispanic gun violence.
Wickedness and lawlessness know no color.
I have been to places where the local mob playing whack a mole with each is considered a spectator sport. By in large, they don't operate on the same depths of the local “bad” part of town.
They stopped because they found a way to be accepted into the society at large, and the means to grow. What happened to African Americans is that those choices were either not made, or not available.
That comes under the “3 generations rule” for immigrants.
The initial wave of immigrants are “old world”, want to work at any job and not make waves.
The second generation are the problem, as they are neither “old world” or integrated Americans yet. Consistently, these are the ones that form gangs and Mafias, the latter being hold overs from old world revolutionary or independence movements that gravitated into organized crime.
The third generation, however, are fully integrated Americans who for the most part want to leave their ethnic community and succeed elsewhere. From the second to the third generation, crime plummets to the “permanent par”, or under, with everyone else.
Mexican immigrants are a half-exception to the rule, as they did not come to the US in a single wave, but over an extended period of time, so all three generations can coexist along with the illegal aliens who are non-integrated “pure Mexicans” who do not want American citizenship or integration.
But the tremendous difference between slave descended black Americans, and immigrant blacks from Africa is striking, as the immigrant blacks follow the more typical immigrant pattern, do not have and do not want the baggage of SD black Americans, and even try to not associate with them.
However, the immigrant blacks are combined with the SD blacks in demographic statistics, which is concealing the declining numbers of SD blacks who are “self exterminating”, with ever increasing numbers of immigrants. This makes the “black” ethnic group to appear to be demographically stable.