*I would be more worried about the outsourcing of our jobs to other countries.*
But even IF we can keep our automotive and related jobs in the US, as the internal combustion engine goes the way of the dinosaur, new technologies and job sectors will replace it.
If you want job security, find a solar panel factory. Green businesses have much more opportunity than the auto industry does, and the sooner we realize that, the sooner we begin to dig ourselves out of our (w)Hole of Sustainability.