欧米人「日本は土建屋を儲けさせるために海岸線の半分以上をコンクリートやテトラポットで覆っている」

Ψ

Tetrapods and concrete have become a Japanese institution in modern times.
Their manufacture and dispersal create jobs for Japanese citizens and contracts for construction companies.
It is estimated that nearly 50 percent of Japan's 35,000 kilometer coastline has been covered or somehow altered by Tetrapods and other forms of concrete.
Because of the proliferation of Tetrapods, tourists to the Hawaii-like island of Okinawa often find it difficult to find pristine beaches and unaltered shoreline,
especially in the southern half of the island.
https://en.wikipedia.org/wiki/Tetrapod_(structure)