For example, a hundred schools of thought were ousted, Confucianism was the only one, and the imperial examination system was perfect, which led to the selection of scholars on the road of stereotyped writing.
2. With the return of power to the central government, local governments are getting weaker and weaker. When the central government of feudal countries collapses, local governments will be powerless to resist. There are too many examples, the demise of the Song Dynasty.
3, centralization, yes, once power falls into the hands of bad kings and courtiers, it is not extremely destructive. Hu Hai, Zhao Gao, Yan Song and Wei Zhongxian are examples.
4. Centralization in the form of emperor's personal despotism has its inherent instability, especially in the transfer of rights. After the death of Qin Shihuang, there was no normal transfer of power, and as a result, the State of Qin perished.