The supervisors’ chambers were filled with a throng of public employees last month—many of them firemen, appearing like a wall of flames in red union shirts—and citizens pushing for reform to the county’s retirement benefits. 

“I am a Marin public fireman, and I am definitely not from Sausalito. I can’t afford to live there. I’m a public employee,” one attendee said. “We want to the law to continue to be used as it was designed…