This isn't happening in only SF, or only in tech. It's happening all over, and across the spectrum of ideas.
Is the argument that social media is tearing apart our society correct? I think it goes deeper than that, and that it's tech in general. We've grown impatient with right-swipe, immediate communication (whether through texting or calling on a cell phone; remember when you had to find a phone, or wait until you got to home/work?), immediate gratification. No time or desire to think things through, just react.
The happiest time in the past 25 years was the first half of 2016, when I swore off almost all tech for 7 months, road tripped, and visited with people--strangers--and learned what made them tick. Guess what--not technology. And I was relaxed, happy, free.
Technology isn't the cause of a toxic society, but it definitely is a/the catalyst.