I like Beat Takeshi as an actor, but I wouldn't rely on him for sociological analysis... I think he's confusing tradition for culture here, and his attitude would lead to a poor result for his country. Japan's "culture" is already in decline because there aren't enough young people taking up the mantle of traditional arts and crafts; the shift in focus towards modern trappings and making money have squeezed some methods into obscurity, endangering ancient methods... The more I learn about traditional crafts like Ise Katagami, Hanko carving, Yosegi Zaiku, Nobori Arai, and so on, the more keenly I notice the absence of young Japanese artisans. Especially in martial arts, it's
foreigners taking up the mantle and keeping the traditions alive. Tourists can be a pain, but it's misguided to blame tourists as a whole for this decline; for many, it's our love of Japan and Japanese things that bring us here.
Japan needs foreigners both as tourists and permanent residents to help their country survive. If you spend all your time in the big cities you may think that Japan is perfectly capable of thriving on its own, but go out into the countryside and the story is much different. In
Shikoku, I saw so many tiny hamlets that had been pretty much abandoned. I walked and biked through entire neighborhoods that had been reclaimed by nature after standing empty for years or a couple decades. I camped on the grounds of an elementary school that had been shut down because there weren't enough kids to teach; it was a known site for pilgrims on the 88-temple trail. The elderly neighbors came by to give us piles of mikan, they were so lovely I felt sorry that their village was slowly dying before their eyes. I remember the area so vividly I was easily able to find it on Google maps:
Google Maps
I totally agree with
@thomas above, instead of complaining about the influx of tourists and all the negatives they bring, we ought to focus on ways to support the booming tourist industry (which will be increasingly important as Japan's manufacturing and other industries decline), so that it's mutually beneficial. The growing pains they're observing are not exclusively the fault of ignorant visitors,