...like paying for their own defense forces. They can't use the Cal National Guard because the govt can withdraw all materiel issues to them.
The military bases there can be claimed under eminent domain and operated like GITMO is in cuba. Arizona would love to assume the mission of Camp Pendleton. Bremerton would like the fleet move from San Diego.
Mexican drug cartels would flourish (even more) and kalifornia would require a much more extensive law enforcement agency. Trust me, the bad guys would love calexit.
Their access to colorado river water would have to be renegotiated with Arizona an much of the water they take now would suddenly become more scarce and more expensive. Las Vegas could refill Lake Meade by simply diverting their Colorado river water before it even approaches kalifornia. Nevada and Arizona would only have to honor treaties and agreements subject to US law.
They would be subject to import tariffs on all their goods and mexico would love to become the port of entry for all goods coming to the US from the far east. Imagine new Toyotas and Sony TVS entering through Ensenada. Yuma AZ could become a huge port of entry for goods that used to enter kalifornia as it would become the closest us port of entry to mexican ports of entry for seafaring goods and is already a railhead and on I-8.
Yes kalifornia, bring it on. Think how many of your productive citizens would leave with the jobs that will go leaving you with lettuce, pot and In-and-Out Burger as your big income earners in moonbeams workers paradise.
You showed convincingly that this is just another scam, not a practical option.