Why are the aliens from China in the movie "A Day When the Earth Is Still"?

The film actually points out that the capitalist industrial civilization will eventually destroy the earth, but it is China people who explain the root of the evil of capitalism, that is, the China system that can prevent the destruction. China people are the key to the plot, and the director is intentional, and the purpose is obvious. Many earth disaster films have this hint, such as 20 12 and The Matrix. Neo used China Kung Fu to save mankind, and the locksmith was also from China. Of course, I'm not talking about actors from China, but actors from China, which is the need of the plot and theme. ) It is not an exaggeration to write the role of China on the earth. If you watch these movies carefully, you will know what the director and screenwriter are saying. China here is just a representative, and the director is not referring to any country, but a symbol.