One of the nicest bosses I had lived in Oakland, CA. He's got to be seriously up in age now. IMHO gangs are an outrage in America. They are truly America's homegrown and illegal-alien terrorists (not that the corrupt media would or could see what's right in front of their eyes).
I lived in Lancaster Pa. for a time...over the years the Latino/Mexican population grew rapidly until the city was divided between King Street,heart of the city....anything south of it was not a place to go. It indeed became the Mexico/of Lancaster. The police “contained” the gangs pretty much in that area with a few from time to time who went outside their area...but it was a divided community. Don’t know how it is now but that was about ten years ago.