Here's some facts on this issue. Though for GM, and not DCX, they make the point.
The U.S. Labor Statistics 2004 ALA report says that for each 100 vehicles sold, GM is supporting 23.4 jobs while the Japanese companies are supporting only 14.5 N. American jobs. How could that be? While Toyota 'assembles' vehicles here, they are made in Japan, with parts made from Japanese suppliers, designed and engineered by Japanese employees. When you purchase a Japanese (or German or Korean)
vehicle, you are supporting their infrastructures, not North America's.
North American parts content of GM vehicles is 82%, while Toyota is only 41%.