Many of these are all excellent points. I did exclude the case.

The car recycling v.s. electronics recycling question is interesting. I once had a very interesting conversation with an electronics recycler on a plane trip - phones could not be recycled like other electronics because of some of the metals content - in particular beryllium copper content (used in spring contacts). He described it as a lot of electronics is ground up and a chemical processes used to extract the valuable elements. With phones the grinding up was the toxic / dangerous prohibited part.

I think the semiconductor numbers are more subtle though. It is sq. mm in the product and yield that are factors. A single power switching element in a Tesla will likely exceed the total silicon sq. mm usage in an AirPod. There is a lot of electronics in a Tesla. Some of the Tesla circuitry is more exotic, Silicon Carbide or GaN. I need to look into how much recovery / reprocessing silicon mfg is using for the reagents. The waste produced isn't as bad as it was in the Silicon Valley heyday where every original mfg site is now a superfund site with very large plumes of toxic waste in the subsoil.