Eliminating rent control without also making it possible to build up (literally) to a degree that (afaik) is currently impossible due to building and zoning res

Eliminating rent control without also making it possible to build up (literally) to a degree that (afaik) is currently impossible due to building and zoning restrictions would do little to ease the problem. By my understanding, though, actually building new housing is about as unpopular with the locals than ending rent control. There's no point in 'signalling to developers that it's time to build,' as suggested in the article, if they literally can't build anything. The annoying thing with the fixation on rent control over zoning is that at least rent control has some altruistic value to people who can't really afford their rents being raised. The zoning rules largely benefit property owners, I expect.