Are you White? That's the differentiatng factor. If you're of South Asian or Chinese or SE Asian origin (not even nationality, origin), you face much less microagressions in other countries than you do in Japan. In general, factoring in CoL and the insular culture, Europe and other Asian countries tend to make sense. Heck, when I was backpacking out in Isan, while a number of people did go work in assembly lines or pick mushrooms in Japan on the JET visa, they preferred South Korea and Taiwan due to a (relatively) less insular culture than Japan, though Germany, the US, and Australia was the more popular option. This is reflected in diaspora demographics as well.