Don't you think those two statements are contradictory? Don't you know anything about economics? If they were building enough homes, home prices would not be so high. Increase supply and the price goes down.
And whites aren't moving en mass because they are afraid of "non-whites".
Then why are they leaving?
"According to a Public Policy Institute of California poll, a nearly 2-to-1 ratio -- 43 to 25 percent -- say the state will be a worse place to live in the next 20 years than it is today."
Maybe people are leaving California for other states because they believe it will be a worse place to live in the future.
In which part of Los Angeles do you reside?