As values drop this will become worse as they will total easier. Someone would gladly take a vehicle like this and bring it back on the road, but it's not worth the risk since Tesla is actively collecting VIN's to disable DC charging. It's not sustainable.
What does that have anything to do with a car being broken down and sold for parts to keep other cars on the road?
And their value isn't dropping, people are paying big bucks for cars just to get the battery packs and drive units.