According to this article, a Chevy Silverado is only 62% comprised of American parts vs. a Toyota Tundra at 75%. A GMC Sierra is only 62%, a Ram 1500 is 70% and an F-150 is 75%, same as the Tundra.
That leaves just the profit and OH is right, that goes to a Japanese company, but they are providing Americans with jobs and I don't mind them making a profit on that. Plus, as I said, I think you'll spend less on repairs than on Ford or Chevy trucks. It all works for me.