It does greatly reduce us that property law is not in effect over computational devices. Someone else continues to own a sizable piece of that which we carry around and use. This tension is visible with tractors that farmers no longer own, can't repair.

If we owned our devices, if property law applied, not only would amti-anti-cirumvention be legal, anti-cirumvention would be illegal. It's not your right to control this device, maker. It's mine now.