Deservedly. If there was a normal market, or at least access to spare parts, there would be no need for donor devices.
The warehouses full of people in Shenzhen tearing down millions and millions of stolen iDevices would still be chugging along, inserting stolen parts into the supply chain.
Apple enforcing DRM on parts is very much a pro-consumer move, steadily taking us towards a world where a stolen iPhone will be worth nothing.
From my understanding of the activation lock, the phone is effectively bricked - no-one can ever use it again. No fence is going to pay for a useless device.
almost everything else is soldered onto the logic board and is futile to transfer
so i think that stolen iphones with activation lock are 100% paperweights.