It’s intentional. At every level of government politicians have as avowed goal above the rate of inflation cost growth in single family homes. They make noises about affordability but that’s diametrically opposed to creating a windfalls for incumbents. Which side of that coin they invariably come down on is immediately obvious.
The one and only path to reduced housing costs runs through reduced homeownership. As long as a large majority of likely voters own the problem will only get worse.
https://fred.stlouisfed.org/series/csushpinsa