I’m all about private property rights, but as you say to be fair there should be a lane there in the corner with four gates installed.If the property owner uses public ground to travel from one of their owned parcels to another owned parcel, then they should be paying an exorbitant access fee to use that public ground if they block the public from crossing corners. They shouldn't be able to have it both ways.
Corner crossing....if they do it then the public should be able to do it.