All of what you have posted is correct, but don't you think that there has been some sort of "protection" before those events? Even protective trade agreements will change the balance. If the US is hostile to exports but friendly to foreign imports, and if the opposite were true, then this would illustrate the problem.
AAMOF, Japan has been supporting the photo industry as one of their prime markets and have established a cabinet ministry for photography. They have several universities devoted to photographic science and engineering. Many Fuji and Konica engineers came from these schools and have PhD degrees. No university in the US offers such a degree.
So, there are many levels of support.