There could be other quality of life issues, such as SF residents becoming aggravated about homeless, human waste, druggies.
Some may wonder, why are we paying astronomical housing prices, to live in a cesspool, when they can escape?
Parts of Silicon Valley are starting to look like Manhattan. HUGE buildings right next to the sidewalk, 5 or 6 stories tall. These replaced old one story set back shopping centers with big parking lots. The character of the place has changed immensely. In many towns, you swear you are in Delhi or Beijing, not the US. The number of Asian and Indian immigrants is really staggering.
The level of rudeness, traffic congestion, and very high-risk daredevil drivers is off the charts.