Inane, I am sorry, but you are very wrong. In California of all places, this very situation arose where a landowner literally started shooting at riders on a public roadway. Cops showed up and went home. It pays to know folks.
If you are going to ride on those roads, bring firepower. Otherwise, I would avoid it unless you are willing to die for your viewpoint.
Sorry to say-but many of those folks that live in the hills believe that they are the judge, jury and executioner.