Every time San Francisco moves even an inch toward building more housing, the NextDoor threads light up like it's the fall of Rome. The latest round of upzoning conversations has predictably summoned the usual coalition of homeowners convinced that a four-story apartment building on their block will single-handedly destroy the neighborhood character that, let's be honest, mostly consists of a Walgreens and a bus stop.

But here's the thing the pearl-clutchers keep ignoring: SF has added roughly eight times more jobs than housing units over the past decade. The recommended ratio? About 1.5 to 1. We're not even in the same zip code as balance. The math isn't political — it's just math. And the math says we need more housing at every level, yesterday.

As one SF resident put it bluntly: "NIMBYs need to accept the city made space for them when they moved here. It's time to make space for the next generation." Hard to argue with that logic unless your entire political philosophy is "I got mine."

The reality of what upzoning actually produces is far less dramatic than the fear campaigns suggest. We're not talking about dropping a 40-story tower next to your Victorian. We're talking about allowing modest density increases — duplexes, triplexes, small apartment buildings — in areas that are already near transit and commercial corridors. The kind of incremental, boring development that built most of the neighborhoods people claim to be protecting in the first place.

From a fiscal perspective, denser housing near existing infrastructure is the most efficient use of taxpayer-funded services. Sprawl is expensive. Every new cul-de-sac on the exurban fringe requires roads, pipes, fire stations, and school buses that existing residents subsidize. Infill density, by contrast, leverages infrastructure we've already paid for.

The real threat to San Francisco isn't a few extra stories on a new building. It's a city that prices out the workers, entrepreneurs, and families who actually make it function. You can't run a world-class city when your teachers, nurses, and baristas commute from two counties away.

Build the housing. The neighborhood will survive.