We would be bad off, but they'd hammer us with more. A few more hits in the SF Bay Area to wipe out Silicon Valley and industrial capacity in the East Bay. San Diego would be included.
However, if they wanted to hurt us just a couple hits at the Sacramento area would screw our waterways that feed water to the entire state, and there goes our food supply.
Exactly. But the children here want to play with nuclear weapons and imagine that keeping around a gazillion of them, at enormous cost and the risk that we will lose a couple one of these days, will make them feel better. I want enough to do the job and no more.