Homes in Lancaster, California. | Sam Lafoca/Construction Photography/Avalon/Getty Images The housing abundance movement has won more of the intellectual argument than anyone might have predicted a decade ago. Across much of American politics, even in Zohran Mamdani’s New York (listen, I love the guy), it is now at least possible to say out loud that we have too many pointless rules making it impossible to build enough housing. But that doesn’t settle the politically harder questions of…where