Why must the historical trend of China be unification?

I just want to say one thing: cultural factors, especially the close relationship between Chinese, Chinese characters and China culture.

Bai Yang said: Chinese characters unified China. You see, Chinese characters are ideographic characters. No matter where they are, no matter how difficult their dialects are, such as Minnan dialect and Cantonese, they are just like foreign languages to northerners, but the written words can be understood by anyone, thus creating a sense of identity, that is, we China people will feel cordial when we see so many Chinese characters in Japanese. Although the Japanese have done so many bad things to the people of China, it is the strong cohesion of Chinese characters, which will lead to the long-term integration of China, and reunification is the general trend.

The languages used in European countries are all phonography, most of which come from Latin, which is easy to change in the process of use. At that time, Latin was used in many regions at first, and then it was changed slightly as the exclusive language of regions or countries, so many languages in Europe were very similar, and after a long time, they were divided into many countries and regions.

This is also related to the personality of people in European countries: they like free personality and show uniqueness. People in eastern countries like collective behavior, and rebels often follow unified things and regulations, and there is no good result.