Why did the New Culture Movement attack filial piety?

His Theory of Literary Improvement advocates vernacular Chinese, calling classical Chinese a half-dead text, which represents the direction of social progress and has created a series of works compiled into Trial Collection.

In addition, Hu Shi also published many articles that influenced a generation of young people in his criticism of the old culture. At that time, he became famous at the age of 26 (probably, I can't remember) and was known as a "young mentor"

While advocating scientific democracy, he and many scholars at that time were influenced by Ibsen, and according to the national conditions of China at that time, they put forward a sound individualism-individual self-help. Women's liberation-saving others; Breaking family filial piety-saving children; And social freedom-the way for everyone to strive for equality.

In the later period of the New Culture Movement, Hu Shi published the article "Study more problems and talk less about socialism", which marked that a large number of scholars represented by Hu Shi and Fu Sinian gradually turned to liberalism, while radicals such as Chen Duxiu and Li Dazhao turned to revolutionaries and believed in * * * productism.

The introduction can be found on Baidu Encyclopedia, and the following are available.