I'm pretty sure San Francisco has no power over Federal agents, and I can't find any evidence that the law attempts to "forbid the Feds from asking employers ab

I'm pretty sure San Francisco has no power over Federal agents, and I can't find any evidence that the law attempts to "forbid the Feds from asking employers about the immigration status of the employees". Best I can tell it only forbids _City_ employees from actively assisting or spending city money to assist federal immigration agents. This is entirely reasonable. As for evasion of federal law by employERs, the employers should be the target of enforcement, not the employees.