Who is leaving? Immigrants?
No it’s the middle class.
What you will wind up with is vast areas of slum, while there will still be islands of the affluent.
In Los Angeles the homeless are just mushrooming. They’ve spread out across the city, and now there are encampments even in more upscale communities. There they scurry around the area during the day, only to return at night to pilfer what isn’t glued down.
I know of an area that was quite upscale, and now they are experiencing thefts at night, and even bold incursions during the daylight hours. It is bad.
The illegal-immigrant type populace is expanding through formerly decent White middle class areas. More bars on windows and gangs in former safe decent neighborhoods. I can’t even travel to certain areas after sunset.
Blacks are moving out of their traditional areas to places like Adelanto and Victorville. I suspect other areas are feeling this type of movement.
These used to be area you could move to, to avoid inner city crime. Now these areas are also afflicted with inner city problems.
We are experiencing the opposite phenomena here on the SF peninsula. Slums are disappearing, and neighborhoods are gentrifying with more upscale residents. The poorer residents are leaving for other areas, began with flight to the East Bay and those areas experienced a huge increase in crime and gang activity. A few decades ago there was about 15 percent population in SF was black, now it's about 5 percent and declining. The worst slum in SF (Hunters Point/Bayview) is looking pretty nice now with asians moving in and gentrification happening. Too bad southern California is in decline.