The most powerful voting bloc—homeowners—is financially incentivized to oppose new housing development that would lower prices. This political reality means politicians cannot address housing affordability without alienating their core voters, leading to policy stagnation and an intractable crisis.

At public hearings, renters and homeowners often argue against new housing using contradictory economic claims—one fearing price hikes, the other price drops. This suggests their opposition stems from economic misunderstanding and expressive voting rather than coherent self-interest.

The common belief that people oppose new housing to protect property values is likely wrong. A more rational explanation is that residents are protecting their existing quality of life from negative externalities like noise and traffic. Pro-housing arguments should therefore focus on improving neighborhoods, not shaming residents.

The environment for building new infrastructure has worsened significantly. Opposition has moved beyond localized "Not In My Backyard" (NIMBY) sentiment to a more generalized, intractable stance of "Build Absolutely Nothing Anywhere Near Anything" (BANANAS), paralyzing development.

Housing scarcity is a bottom-up cycle where homeowners' financial incentive is to protect their property value (NIMBYism). They then vote for politicians who enact restrictive building policies, turning personal financial interests into systemic regulatory bottlenecks.

A new building causes tangible harm (traffic, noise) to its immediate neighbors, but provides an imperceptible benefit (a tiny drop in rent) spread across the entire city. This fundamental asymmetry of concentrated harms versus diffuse benefits ensures that organized, rational opposition will almost always overpower weak, widespread support.

Drew Warshaw frames the "Not In My Backyard" (NIMBY) phenomenon as a rational, if selfish, economic decision. Incumbent homeowners are incentivized to restrict new housing supply because basic economics suggest that increasing supply could decrease the value of their primary asset: their home.

By restricting new housing development (NIMBYism), current homeowners artificially inflate their property values. This system is not an accident but a mechanism that effectively transfers wealth from younger generations trying to enter the market to the established incumbents who benefit from the very scarcity they help create.

Politicians at all levels actively restrict housing supply through zoning and other policies. This is not incompetence, but a deliberate strategy to protect and inflate property values, which satisfies the large and reliable homeowner voting bloc, ensuring re-election at the expense of renters and future buyers.