There's an entire chunk you're missing.
Outside investors.
You think software engineers are the ones raising the prices so high?
Its multi-millionaire and billionaire Chinese and Saudi people with money to blow, and who are literally parking millions of dollars in neighborhoods with 3-4 bedroom houses.
Google and Facebook employees are 2-3 to a house renting, or with incubators.
Only senior members, couples, and the wealthy outside investors (and a few overpaid athletes, actors, directors, music execs) are buying property and raising the COL sky-high.
ding ding
chinese, saudi arabian, european, and american elites are in on super cities
modeled after hives, where the worker bees will eventually live in modernized slums.. think s1 e2 black mirror
it has to get worse before they can usher in the totalitarian technocracy without resistance though
it's like a shytty glass of water with mud and bugs all in it.. you won't drink that shyt now but wait until your piss is brown and your throat's burning
UCSF baby
Facebook engineers standing in lines to buy lottery tickets just like me.

Bottom line if I was making 6 figures I'd be stacking... Convert a airstream into a portable home and just find me somewhere to park, bike into work!
then when it's all said and done retire with a phat amount of money...