Another issue is California’s “environmental” plan to reduce daily commute miles. Most places implement it by intentionally snarling rush hour traffic. This leads to camps of motor homes, sky high real estate values near offices, etc.
Of course, convincing the NIMBYs that support this plan to simultaneously invest in public transit is not an option.
You and the downv00ters can disagree all you want, but NIMBYism is a huge problem in California. Where there's a financial incentive to keep housing limited as an investment, you get the excessive NIMBYism California is known for.