... is how many people in the other parts of the world would view that position.
Maybe it's hard to understand for 'New World' people, who don't really have a sense of their own ethnicity, but it's very different elsewhere.
'Japan' is not so much a 'nationality' in the modern, Western sense.
'Japan' is the place where the 'Japanese' live.
The 'nation' of Japan is a legal construct around an ethnic group.
While I agree some degree of openness will definitely help the 'GDP' and on some other measures, it's important to grasp that other people will see it differently.
In new 'New World' - we generally focus on culturally secular measures, such as 'the GDP' i.e. a benchmark for the economy, which 'helps everyone' - and it avoids difficult socio-cultural arguments.
But almost everywhere else it's not like that.
I live in Quebec - and the Quebecois are an 'ethnic group' - and so politics here is totally different. We have state-sponsored child care for example - partly due to the very socialist political perspective, but partly because of the coherence of the community: it's really easy to get others to grasp the social benefits. They naturally seem themselves as part of a community, at least more so than the Anglo universe.