Why are Koreans unfriendly to China people? History or something?

First; Historically, the orthodox regime on the Korean Peninsula has been descended from China. Now the main body of Koreans is actually the most primitive primitive people on the Korean peninsula, but unfortunately, in ancient times, these people have been under the rule of China immigrants ... Second; Historically, the Korean Peninsula has always existed as a directly affiliated territory and subordinate country of China, and it has no independent rights. Now that we are independent, we naturally have a rejection of China, which is normal. Third; North Korea has been very dependent on China for most of its history, which is not in line with South Korea's modern international status-at least in the top ten in the world! Fourth; On ideological issues, South Korea, as an ally of the United States, now takes orders from the United States, and its foreign policy must advance and retreat with the United States! To put it bluntly, he is a semi-colony of the United States. In this case, a certain contradiction with China will help South Korea gain diplomatic chips against the United States! -Now South Korea has benefited a lot from the United States! For example, their army ... fifth; We in China have failed to live up to our expectations! Many people in China have masochism! Anyone who says that China is good is psychosexuality, that is, Ah Q, that is, when China is bad, some people say that it is to face up to history ~ in fact, it is not the case at all! Learning from foreign countries is to be in line with international standards, and engaging in your own is called bumpkin and backwardness. When it comes to tradition and ancient times, it is backward-in this way, South Korea will have a chance! -Grab a world heritage in China, which can bring huge political and economic benefits and more important cultural benefits to South Korea! I am a fool if I don't rob you!