EDIT: After writing this I realized the parent comment was talking about an episode of South Park from S12, not the recent episode that led to the ban in China. I'll leave this up but read into this with that context!

You should really actually watch the episode. It's a blatant dig at China's government, censorship policies, and treatment of political prisoners. Its treatment of `China invading the US` were not out of `paranoia`, as you say, but based out of reality. It attacks Disney for making similar concessions to the Chinese government in its MCU movies.

Spoilers, but deeper analysis:

Randy's story arc this season appears to revolve around surrendering your morals for the next dollar- for example, last season he turned down a deal with a large marijuana corporation to continue his home-grow operation, but proceeded to create a partnership with them in the season premiere to ensure his stake in South Park's weed market. The scene where he garrotes Winnie the Pooh in this episode, to me, is an extension of this same theme- the sellout of what we've taken as sacred, except now, it's to China's CCP. Contrast that to the name of Randy's farm, which is a bastardization of the word `integrity`.

The entire segment about the band biopic in this episode is basically saying the same thing but far more overtly.