https://calmatters.org/housing/2022/05/california-housing-cr... : example..more recently as to how unions control housing supply..
[..]Anti-worker or pro-worker? Why labor unions are fighting over a housing bill
The bill, which has the support of Assembly Speaker Anthony Rendon, would allow housing that is 100% affordable to low-income households to be built “by right” on areas now zoned for offices, retail and parking. That means skipping many city council meetings that tack on costly delays as well as the state’s premier environmental law many blame for its housing woes. Livable California, a local control group, has already dubbed it “the worst bill of 2022.”
The bill would also allow mixed-income housing, with a minimum of 15% of units affordable to low-income households for rent or 30% of units affordable to moderate-income households for sale, along commercial corridors such as strip malls.
[..]
The Carpenters and the Trades are at loggerheads over how much unionized labor developers would have to use to take advantage of the streamlining. The Trades are pushing for language requiring a certain amount of the workforce be graduates of an apprenticeship program, which effectively means union members. That’s common for public works, but unusual for residential construction. [..]
Still think ‘NIMBY’ism and Prop 13 is why we have housing shortage. California is controlled by Unions. We just live in it and pay taxes.