I'm not trying to be confrontational. Please keep that in mind.
I see you're from Brooklyn. Have familiarized yourself with the issues surrounding the anti-development sentiment and roadblocks to new development in San Francisco? There's a lot more to it than "[Some] voters don't want to increase the quantity of housing ... near them."
To speak directly to the Krugman quote: San Francisco's rent control is more correctly termed rent stabilization. Rent increases are slaved to the CPI for as long as a unit is occupied. When a unit is vacated, that unit's rent may be set to any rate the landlord desires. More importantly: unless special arrangements are negotiated, [0] rent stabilization does not apply to housing built or first occupied after mid-June 1979.
AIUI, at the time, existing landholders decided that they would make much more money by raising their rents to ludicrous levels than by increasing the density of the housing on their property. They could do this by taking advantage of high demand and limited supply. When most landholders won't allow a developer to build on their property because they make more money by restricting the supply of housing, Krugman's argument goes out the window.
Rent control and rent stabilization has no place in districts with healthy responses to increased demand for housing. It is a tool of last resort. San Francisco worked hard to balance the potential damage done by rent stabilization with the real damage done by astronomical rents. I would say that they largely succeeded. [1]
[0] As far as I know this has happened only once, with with Sangiacomo's Trinity Place on Market street. A special arrangement was reached to destroy existing rent-controlled units at the site, but have a 1:1 replacement in the new construction. All other units in the building are "market rate" units.
[1] But, -in retrospect- they erred too far in the landlord's favor. The "Vacated units reset to market rate" provision in the ordinance gives landlords ample incentive to harass and subtly force out long-term tenants, and -in times of radical rent inflation- behave as slumlords and neglect maintenance and upkeep. (Because, if they have a captive revenue source, why on earth would they spend more than the bare minimum that they can (legally or illegally) get away with to retain it?) [2]
[2] Naturally, if rent control was the situation in SF, there would need to be some flexibility in the law to encourage new development.