The external causes of the decline of feudal society in China

This question should have been asked by a lot of people, and I think there are a lot of answers, however, I still want to answer it.

I think the main reason, the Qing government adopted a closed-door policy, resulting in the external world do not know, the people in power do not know the external situation has changed a lot, they still think they are the center of the world as a great country.

And foreign countries, in particular, with the United Kingdom from feudal society through the Industrial Revolution to the capitalist society, and the establishment of a constitutional monarchy on the political make the development of the capitalist economy has played a very good protection for the British merchants in the global development of colonies played a protective role.

Opium War

Faced with this huge market of 40 million Chinese, the British naturally will not let go, so in several times and the Qing government to carry out friendly consultations do not go under the circumstances, it will be Lin Zexu destruction of opium as an excuse to start the opium wars, and from then on China fell step by step to the Western powers of the colonies, the decline of its dynasty is the trend of the general situation.