When did japan lose its' way?

When did japan change from the hardworking and honorable with a proud history into endangered species killing perverts?

He was met by representatives of the Tokugawa Shogunate who told him to proceed to Nagasaki, where there was limited trade with the Netherlands and which was the only Japanese port open to foreigners at that time (see Sakoku).
Perry refused to leave and demanded permission to present a letter from President Millard Fillmore, threatening force if he was denied. Perry ordered his ships to attack several buildings around the harbor to demonstrate US naval power. The Commodore was fully prepared for more hostilities if his negotiations with the Japanese failed, and threatened to use unrestrained fire if the Japanese refused to negotiate. He sent two white flags to them, telling them to hoist the flags when they wished a bombardment from his fleet to cease and to surrender.[9] Perry's ships were equipped with new Paixhans shell guns, capable of wreaking great destruction with every shell.[10][11] The Japanese military forces could not resist Perry's modern weaponry; the term "Black Ships", in Japan, would later come to symbolise a threat imposed by Western technology.[12]