Why would Japan be INT? Most East Asian counties and especially Japan actually tend to have a predominantly SFJ cultures that are not at all welcoming to the independent thinking of introverted rationals. I know enough Asians to say that western stereotypes of them as logical introverts are wildly inaccurate. It is more common to be very social, and also very cliquish and driven by social pressures from both peers and parents.
Nordic countries like Norway are also known for the "Jante Law," a sociological phenomenon of hostility towards individuality achievements and pressure to conform to the mean. (The term comes from a novel where the law contained these rules:
- Don't think you're anything special.
- Don't think you're better than us.
- Don't think you're smarter than us.
- Don't convince yourself that you're better than us.
- Don't think you know more than us.
- Don't think you are more important than us.
- Don't think you are good at anything.
- Don't laugh at us.
- Don't think anyone cares about you.
- Don't think you can teach us anything.
- Don't think that there aren't a few things we know about you.)
Again, this seems more like the dark side of SFJ and not at all hospitable for INTs.
America seems more Te/Fi as opposed to Fe and sensors are still predominant dominate, but if anything I'd say that our culture is more intuitive-friendly than most.