When voters in Oakland, Berkeley and South San Francisco, California, receive ballots in the mail next month, they’ll be asked whether their cities should be allowed to help build more desperately needed affordable housing. The reason for seeking voters’ permission? A 72-year-old provision in the California Constitution requiring local governments to get community approval before developing, buying or funding “low rent housing” – a law voters across the state will choose whether to repeal in 2024. Article 34, passed by a statewide ballot initiative in 1950, has blocked affordable housing for d…