Why is it said that the mainstream of ethnic relations in history is friendship and ethnic integration? Begging for the correct answer

Throughout the history of China, the mainstream of ethnic relations has been peace, friendship and continuous integration, converging into a unified multi-ethnic country.

Ethnic integration is conducive to the combination of the excellent cultures of various ethnic groups and makes culture more diverse.

Ethnic integration enhances the understanding between various ethnic groups and is conducive to the unity and stability of the country. .

National integration is conducive to the dissemination and improvement of production technology, the improvement of social productivity, and promotes the historical process.

The concept of national integration has two meanings. First, when describing the ways and means of the demise of global nations, national integration refers to the historical process in which national characteristics and differences gradually disappear after the world achieves unity, forming a human being as a whole without national boundaries. The second is to treat ethnic integration as a common historical phenomenon. It refers to the phenomenon in which two or more ethnic groups in history eventually form one nation due to their proximity and mutual influence. National integration is a common phenomenon in multi-ethnic countries and an inevitable trend of historical development. The formation, change, and development of national unity in ancient and modern times, both at home and abroad, are closely related to national integration.

From the perspective of ethnic relations in the world, there are two situations or ways for one nation to merge with another nation. One is to use political coercive means to unite one nation with another nation; the other is to use economic and cultural effects to unite one nation with another nation through a natural process. In order to express these two objectively existing situations or methods more appropriately and scientifically, people are accustomed to calling the situation where one nation merges with another nation through political force assimilation; The situation of merging one nation with another is called syncretism. In the history of China's multi-ethnic relations, there are both forced assimilation and natural integration. They are divided, combined, gathered and scattered, which is intricate and complex.

The natural integration of ethnic groups is the result of the close connection between the economy, culture and living habits of ethnic groups. It is a process of mutual penetration, and has two specific manifestations: First, the backward ethnic groups are economically and culturally integrated with the advanced ethnic groups. Under the strong influence of the people, they gradually merged with the advanced nations. For example, the Xiongnu people were Sinicized from the Eastern Han Dynasty to the Northern and Southern Dynasties. First, some members of advanced nations merged with backward nations because they were trapped in the ocean of backward nations. Such as Zhao Tuo in the Qin and Han Dynasties, Huan Dan in the Southern and Northern Dynasties, and Gao Huan in the Northern Qi Dynasty. The main prerequisites and specific ways of realizing ethnic integration in the history of our country are:

(1) Ethnic migration and living together.

(2) Friendly economic and cultural exchanges.

(3) United struggle, that is, in the struggle against exploitation and oppression by the rulers of various ethnic groups, people of all ethnic groups strengthen ties and friendship