No problem.
Kalifornia will simply get day old milk transported in from adjacent states.
Good for Arizona, Nevada and Oregon dairy farmers. Perhaps the Kalifornia farmers will move.
Like they do with the power.
The day the Palo Verde Nuclear plant goes offline, Los Angeles can't turn on the lights.
They'll have to take 40 cents on the dollar for their land now. Much of it leveraged.
Bankruptcy for hundreds, if not thousands.