Debate over the local resolutions reflect an intraparty split between progressive activists, who largely blame Israel for the violence, and a mainstream Democratic establishment that is concerned about civilian deaths but broadly supportive of the Jewish state. It’s a fissure that reflects ideological and generational divides, with many younger activists leading raucous pro-Palestinian demonstrations, including a takeover of the Democratic Party Convention in Sacramento last month. San Francisco Supervisor Dean Preston, a staunch progressive, unveiled the latest resolution at Tuesday’s board meeting, where hundreds of pro-Palestinian demonstrators lined up for hours to speak. Before the meeting, Jewish groups and elected...