Oh everyone wants more houses but there is a housing shortage because there is a labor shortage. At least that's what they said a few years ago. After the housing market fell all the experienced builders left and never came back. It' been slowly ramping up again but most of the new building has been with multi-dwelling units.
That's a smart move as multi-family units is a great way to rapidly and efficiently increase the housing stock. From my experience the primary inhibitor of development is zoning restrictions and NIMBYism. California may be taking radical steps to eliminate these and I think other states should look into similar measures.