It's pretty shocking at this point, the entitlement and willful ignorance. This is part of the reason why there is simmering tension between native and local Hawaiians and privileged, wealthy mainlanders and foreign tourists who own vacation homes (and thus help contribute to the state's housing crisis). That any property owner considers the beach in front of the beachfront property as their "own" is pretty arrogant and not grounded in reality. The beaches in Hawaii are all public, regardless of how much money you paid for your view.