I came across a video on Youtube discussing it (there are several), and Kowloon Walled City is just endlessly fascinating. A few notable videos I found on the subject were:
There is also a book on the city called City Of Darkness Life In Kowloon Walled City, which I found on archive.org in high resolution. It is full of photographs and detailed accounts of the comings and goings within the enclave.
What the fuck are you talking about? In actual reality it was a product of capitalism. Specifically British imperialist capitalism in China. It took until the mid 80’s (40 years after the Communists came to power) for the British to allow China to have control over the area and it was turned in to a park less than a decade later, clearly indicating that the Communists were in no way interested in continuing the existence of the dystopian walled city.