THANK YOU for your feedback.
You are correct: hellholes are improving because of the never-ending INCREASED property values in California.
Oakland always did have a VERY posh part of town as well.
My youngest daughter lived in Oakland for a few years, in the upscale part of the hills near Piedmont district. Very upscale restaurants, stores and entertainment a block or two away. Unfortunately she had to commute the Oakland streets through ghetto areas to reach her job in Emeryville. People were getting carjacked and shot in drive-bys on those same roads she commuted on (Martin Luther King Blvd, need I say more?). Glad she moved away. When I worked with SF cops, the ghetto I spoke of was Hunters Point. Cops had a SWAT facility there full of tactical gear; I was very impressed seeing all the tactical equipment and vehicles in warehouses there. Too bad they had to go through the slums to reach it. Recently a lot of Asians are moving in, displacing blacks, and the area is improving.