The concept of anything %100 American made is foreign to me
Seriously though, I work for a small (less than 30 employees) manufacturer of experimental biomedical instrumentation. If we limited ourselves to using only American made parts we couldn't make the instruments we do. Most of the DC stepper motors we use, used to be made in Japan. They may be made in Indonesia now, I'm not sure. The origin has changed several times although it's still a Japaneese company. We source parts from all over the world to build our instruments. On the other hand, we just cracked the China and India markets recently, selling multiple instruments in each country. The economy is indeed global and you will never see that genie go back in the bottle short of another world war that completely changes civilization.
Personally, I'm not a nationalist. I'm proud to be an American but I don't limit myself to one country. My wife wasn't even born here, my tractor is Japaneese as well as one of my cars. Two of my cars are Korean. I'm not sure where my old Ford truck was built and I don't really care. My son is half Filipino and could get a Philippine passport if he chooses. His mother was still Filipino when he was born. So my own question to myself would be "Why would I care if my tractor was %100 American made?" The short answer is, I wouldn't
Kevin