Part of the real confusion people have is - so many things about current trade are due to "current economic decision making". That is, something isn't rare or unable to be done elsewhere but that it's been done this way for efficiency of all involved.

There's often a really weird undercurrent of nationalism that springs up in these dicussions as if its' "a country" that does something well as a function of being that country, not as a function of an economic opportunity and ramp up.