We all know that the Qing government closed its doors to the outside world, which imprisoned people's thoughts to some extent. In addition, weak countries have no diplomacy, and backwardness will be beaten, which makes the Qing government's long-term national strength weak. However, we should look at this problem from two aspects. Even though a closed door has many shortcomings, it also has its advantages.
During the period of closed door, people still engaged in self-sufficient small-scale peasant economy, and social productive forces continued to develop. At this time, the industrial revolution is going on in western countries, the feudal society has been overthrown and the capitalist society has been established. In order to develop and colonize the country, the western countries at that time began to open up economic and trade markets around the world, or directly established colonies, which accelerated the pace of aggression. Due to the "closed door" policy of the Qing Dynasty, the invasion of western countries was stopped, the backward social environment was maintained, the people were spared the suffering of war, and the Qing government was able to survive.
Even if there are some advantages to closing the door to the outside world, it still does more harm than good. Because of this policy, China began to lag behind the western countries. Even if social stability is maintained for a period of time, it will eventually decline because of backwardness, thus being attacked and invaded by other countries.