This is a startlingly ignorant take. Shelter is among the basic human needs. If people were starving to death, would you blame mental illness or food prices?
> Progressive attempts to solve this problem have all failed
Yes. Because they don't focus on creating more housing. Not "affordable" housing, just housing.
They're called "progressive" attempts because the city's politics is dominated by progressives. But every property owner and voter, regardless of political stripe, is responsible for this state of affairs.
There is exactly 1 solution to California's "housing crisis". More housing. Not "affordable" housing. Not mass transit alone. More. Housing. Moar. Build baby build. If that doesn't work, you know what you do? Build more housing. Beat those prices into the ground with construction cranes and hammers.