I would say it's down to the current balance of appetite for conservative policy, as a function of inertia from a conservative history. Perhaps let's examine t

I would say it's down to the current balance of appetite for conservative policy, as a function of inertia from a conservative history. Perhaps let's examine the question. Many countries 'opened up'. Japan did also, and readily adopted foreign processes and technologies in the 20th century. If we're referring to immigration, then, sure, they're not keen on it. On that point, they're not actually alone. Countries like Poland are very insular and don't welcome non-whites. Saudi Arabia does not allow casual tourist visa visits and people are typically required to have letters of invitation to enter (https://lifeinsaudiarabia.net/importance-of-invitation-letter-in/ https://lifeinsaudiarabia.net/importance-of-invitation-lette...) I wouldn't refer to their attitude as unique, then.