My son is a musician that makes extra money as a guitar broker. He has learned over time that some countries are extremely difficult to ship to. Australia happens to be one of these countries. Only certain carriers will ship at a reasonable (?) cost and require boat loads of paper work. It is not always as simple as we might imagine. I understand your frustration, but for an individual in some cases it is not worth the hassle.
That being said I would not diss the USA. We have our issues but NO country is as charitable, and giving as ours. Maybe you need to think about where the world would be today without the USA. How is your command of Japanese?
PS: Is it true that Australia will not give any jobs to people unless they are an Australian citizen? And why is this?