Meanwhile, cities like New York, Seattle, and LA are producing politicians who manage to be both unapologetically left-wing and pro-housing supply. Shahana Hanif and Kristin Richardson Jordan in Brooklyn. Katie Wilson in Seattle. Nithya Raman in LA. These aren't centrist technocrats — they're progressives who've figured out that opposing all development doesn't actually help working people.

So why can't San Francisco crack this code?

One local resident put it bluntly: "Left-wing politics in San Francisco is dominated by older people whose worldview was galvanized in the 1970s, when all development was suspect and profit-driven development was totally unacceptable." That's a big part of it. The city's progressive establishment calcified decades ago around an anti-growth ideology that made sense when fighting freeway projects and downtown corporate towers, but makes zero sense when the median one-bedroom rent is north of $3,000.

The anti-development coalition here is one of the strangest bedfellows arrangements in American politics: wealthy homeowners who want to protect their property values standing shoulder-to-shoulder with self-described socialists who claim to fight for the working class. The homeowners get restricted supply and rising equity. The socialists get... vibes?

Another SF resident nailed a deeper structural problem: the city is simply too transient. "Younger people don't have plans to stay here and make it a forever home; the more common story is to make a few bucks then leave to have a family. We lose a lot of this kind of activism because of this lack of long-term investment."

That's the real trap. The people who would benefit most from a left-YIMBY coalition — younger renters getting crushed by housing costs — are exactly the people least likely to stick around long enough to build one. They leave for Sacramento, Austin, or Boise before the political cycle even turns over.

From where we sit, the math is simple: if you care about affordability, you need supply. If you care about equity, you need supply. If you care about the environment, density beats sprawl. A left-wing politician with genuine progressive credibility could fracture the anti-building coalition in ways a moderate YIMBY never could — peeling off tenant advocates and labor groups from the landed gentry who are their actual economic adversaries.

But that would require SF's progressive establishment to admit that blocking housing for forty years didn't create a workers' paradise. It created a city where only tech millionaires and rent-controlled tenants can afford to stay. Everyone else just becomes another line on the U-Haul receipt.