I have news for you, gangbangers, gangs and their influence are everywhere, to say that there aren't there is ignorant, they most certainly are.
As an current LEO, I work in a very affluent community and they are present. I live in an affluent rural community and they are present. They are everywhere and where do you think they go to commit robbery and burglaries? I'll give you a hint even they know you can't get blood from a rock
I believe every able bodied American should be armed and excer use their 2A rights.