Yeah raw materials and parts just fall magically out of the sky, as long as you do the final assembly (and sometimes not even that, sometimes only packaging a product is needed for "made in x") yourself then you are self-reliant.
No need for the heavy sarcasm - why not just point out the nebulousness of what 'Made in [Country]' means or provide some sources that give a more detailed look at Japan's manufacturing base so we all don't need to make assumptions?