California courts have ruled it not his property several times. Despite mounting throwing never ending $$ to stall in court and mounting ridiculous legal theories of literally citing Pirate Law from the 1700s, he keeps losing again and again. It's a public beach, it's always been a public beach. It wasn't like it was a secret when he bought the property, he just thought he was special and smart enough and rich enough to get his way.
This isn't about big evil government encroaching on property rights. It's keeping land that was already public land public. If you owned a house and I bought up all the property around your house and then put a gate across and locked your driveway, you'd still own and have legal access to your house. That's what Kholsa is trying to do.