I'm not describing a zero-sum economy. It's possible that NJ suffers a net local loss, even if that's more than outweighed by a net benefit in NJ + CA. And even if NJ enjoys a net local benefit, you still have a bunch of people out of work in return for everyone paying slightly lower prices for cars. In a place like NJ, where unemployment is the #1, #2, and #3 concern, you can see why legislators would be gun-shy about getting rid of local protections in the name of economic idealism.