After the demise of the Song Dynasty, why did the Japanese begin to dislike China people?

There is no China behind the cliff. This sentence is not just the ridicule of a history lover on the Internet. About 80 years ago, when Japan invaded China, the Japanese also advocated this view.

In the past, the Japanese thought China was more or less Asian orthodox, at least psychologically. After the Song Dynasty, the Japanese even regarded themselves as the orthodoxy of China, stopped looking to China, and gradually began to invade the mainland in the next few hundred years.

The reason for saying this is that the Japanese really believe that there is no China after the cliff mountain. The Japanese motivation may be like this:

First, the height of civilization.

Although Mongolia has defeated all countries in military strength, it is, after all, a minority from the north, without any advanced culture, and even leads a life of eating and drinking blood, with too many primitive customs. Although the civilization of Japan at that time was lower than that of the Song Dynasty, it was definitely much higher than that of Mongolia.

In the eyes of the Japanese, the demise of the Song Dynasty is not only the demise of the regime, but also the demise and retrogression of civilization. And Mongolia has ruled China for almost a hundred years. For one or several generations of Japanese, it is equivalent to making their cognitive level feel that the mainland is equal to barbaric civilization. So in the education of later generations, China gradually began to be looked down upon.

Second, racial screening.

The invasion of Mongolia led to a large number of massacres. According to the records of Kyle Polo who traveled in China, the Mongols slaughtered 200 million people of all ethnic groups. Moreover, in the course of the massacre, all Han Chinese who were unwilling to surrender and fight were killed, leaving only Han Chinese who had the wisdom to protect themselves.

In this way, the genes of the Han people are equivalent to having a filter, killing all the bloody ones and leaving all the servile ones behind. Therefore, perhaps in the next few hundred years, China people's philosophy of life will become more obscene and timid, so the Japanese feel that China has been far away from the legacy of Han and Tang Dynasties.

Therefore, the demise of the Song Dynasty carries weight in the hearts of the Japanese, and the Japanese even lament the demise of the Song Dynasty. I'm really sorry.