There is one reason that Silicon Valley will not survive.
The PC/SJW crowd is targeting high tech. now. I can see eventually a case like Ellen Pao where a bad choice of some San Fransisco jury is going to a company in a case that is not even good enough to be borderline.
At that point several startups and established tech firms are going to realize that it is safer to have their facilities in Topeka or Toledo or Peoria etc than it is in the second liberal armpit of America.
You'll get less antagonistic juries and even when guilty won't see such large judgements.