Is japan manga-isolationist?.....of course, duh.
Japanese media produced in Japan is for domestic consumption by the JAPANESE.
It is like british soap operahs and comedy, its nice if it makes it big abroad but its made mainly for british audiences in britain.
Few shows make it as international hits, and thats usually un-intentional, the simpsons is popular all over the world, but it was really only meant for america.
Western anime and manga fans are always wishing japan would embrace them and export their media just for them but, its simply not going to happen, the reason they love anime and manga is because of its own unique merits....merits which would soon disolve if it was being made with foreign audiences in mind.
So yeah, its isolationist, if by isolationist you mean produced for domestic audiences, but it isnt the only country guilty of this crime, if more of the world spoke japanese it probably would, but its just one country with this unique culture and language and so thats where its made for.


Is panasonic japanese? what about the seven 7 chainstores?, or cocacola and pepsi (cocacola even produce ryal milk tea, wish they sold it in the uk along with their vending machines) theres mcdonalds, KFC, dennys, starbucks, hershey candy, i wouldnt say japan is THAT protectionist, western cosmetics and clothing brands, it is true theres a lack of western electronics but maybe its just because the japanese feel home-grown in that particular sector of the economy is superior to the foreign stuff.

Though i did see a dyson hoover, weeeeee national pride.