Most people don't get Los Angeles. Ya kind of have to go there to understand.
News flash, people: Los Angeles has a bunch of Mexican Gangs. They don't make the headlines because their crimes are really common place like drug dealing, assault, and robbery, and the U.S. (California in particular) doesn't want a bunch of negative output about Hispanic people.
Not to mention the black gangs. You know, Compton is straight out of L.A.
You can actually go visit the places you hear about in rap songs.
I lived in Hollywood for a while, which is a bit better than the rest of the area in some ways and a bit worse in others, but my synopsis was that Hollywood would be a great place if you were rich. I was not. Beverly Hills is right there, too, along with other great mega-millionaire neighborhoods, but 90% of the area is just trash.