In the state Capitol, the response to California’s chronic housing shortage this year has been hugely disappointing. A bold proposal to make it easier to put up new apartment buildings and condos near mass transit and in single-family neighborhoods was abruptly killed last month by Sen. Anthony Portantino, D-La Cañada Flintridge, the chair of the Senate Appropriations Committee. State lawmakers continue to focus on subsidized “affordable housing” projects despite the years of evidence that this approach does little or nothing to bring down the high cost of housing in the Golden State.