Additionally this gets super muddled when it comes to coastal constructions, even simple jetties docks may have public safety concerns, protection of private property (if expensive boat maintenance tools or machinery are located on the jetty) - and that will evolve into questions about using coastal constructions to restrict access.
Lastly, the costs - as Khosla mentioned the beach is unprofitable to run, should CA be footing that bill? Could they sublease the property to an entrepreneur that thinks they could make the beachside facilities profitable? It is entirely unreasonable (even given the excessive wealth of Khosla) for him to be forced to maintain an unprofitable entity like that and all the facility liability that goes along with it.
This is a gigantic can of worms.
I look forward to how this might be resolved, but it sure ain't going to be simple.