(and I'm pretty sure that some of the better educated on the subject could find examples of times when regulations to "save" one industry ended up stifling another)
For something like 70 years, Nabisco has made Oreo's in a plant here in Chicago (in fact a lot of candy/confectionery/bakery companies were based or had plants in Chicago), however a few months back they announced they were moving that production to Mexico. Why you ask?
Sugar.
Many years ago Congress enacted very high tariffs on imported sugar to protect the domestic sugar growers and refiners. This has made the cost of sugar much higher then what it could and should be. Many candy companies have either closed their doors, been bought out, and/or moved overseas to where they can pay much less for the one vital raw material for candy/confectionery/bakery production. Nabisco finely hit the tipping point, where it is cheaper to outsource production, not because of lower labor costs, although that helped in shortening the time to the tipping point, but because they can source their materials for much less then what they are paying today.
If one goes back and looks at why production, jobs, and industry have moved overseas, often you will find it's the result of (un)intended consequences of clumsy, and heavy-handed government interference in the market.