This exists at several levels. For one they were at the forefront of the "tax rebellion", depriving the state and local governments of funds to do anything of s

This exists at several levels. For one they were at the forefront of the "tax rebellion", depriving the state and local governments of funds to do anything of substance. For another they've been very anti-development overall. Many of the municipalities along silicon valley are staunchly anti-development, and decided to remain low density bedroom/retirement communities. And LA has been a car-centric city for a while, which is difficult to overcome in a city that size.