How about the folks who work for the tech companies in the area, are they also struggling with rent or is the average salary of an engineer in SV enough to cover the recent increases?
I earn a substantial income in the Bay Area. It's not the $250k/yr Google experience, but it's in that ballpark (within 25%). My commute into the city is about 90 minutes one way (using trains and biking or walking). Rent on the attached home my family lives in is half my take-home pay. The only reason it isn't more than half after the 8% increase my landlord added this last renewal is because I got a substantial raise.
Assuming you're making 25% less than $250k/yr, that puts you at ~$190k/yr. Are you saying you pay ~90k/yr ($7.5k/month!) to live 90 min away from the city? If so, what are your living conditions?
It's my pay net of taxes, pre-tax savings like 401k, HSA, etc., not half my gross pay. That amount (total) is around $90k/year (give or take--I'm not giving exact numbers, here), and if you divide that by 12, roughly half (again, not exact) is rent.
My family (self, wife, two children) live what I'd describe as a modest lifestyle (for America). The home is big enough to be comfortable but not big enough to have "extras" (e.g. there's no space suitable for a private home-office). I would normally describe it as a comfortably middle-class (not affluent) lifestyle, but considering the savings and other perks the taxes pay for that'd be a bit disingenuous, in my view.
I do think the rent is excessive, though. The same home we're living in would sell for perhaps $150k-$250k (depending on neighborhood) in the location my wife's family lives. The high end of that range is a 25% down-payment on what the units in the community we live in sell for the last few months; a ridiculous valuation by any reasonable standard. There isn't as much cultural variety there, but it's not exactly a cultural wasteland (e.g. there are a variety of native-come-to-America run restaurants for Afghan and other similar foods, stores, a non-trivial presence of foreign-born non-whites, etc.). The offerings of the Bay Area don't justify the huge difference in prices.