Thanks for the detailed comment! I've read some of the links, they are very enlightening.

The video goes on to show the inequal distribution of wealth, or GDP, between coastal regions and interior, rural areas to the west. And China's funding these poorer regions through the gainings of the wealthier regions. I see some of your links show China's trying to now properly develop these regions according to their characteristics rather than just giving them money. While in compensation the western region acts as a geographical shield against external forces as and thus defends the wealthier regions---I understand this point mostly for what have led to all uprisings, revolutions, wars in China during the 20th century, but not sure if this makes too much sense.

The video points out the fact communism, Chinese socialism, is also to union people in a large country as China, and maintaining sovergnity. It gives this is the main point of socialism in China rather than actually implementing socialism and communism. So it is nice you pointed out all these data.