Or Pooh Bear.
Or South Park entirely after one episode of joking about China influencing Disney about Pooh Bear.
Or failures of the central government.
There are a lot of things banned online in China; this is so not true.
I frequently see it mentioned in Chinese social media.
You just can’t use it as a coded way to agitate against the government.
Just because one criticizes or expresses anger at the central government does not mean that they want to induce mobs that will topple it like in Ukraine. I sincerely doubt China's future history books will talk about the Pooh Bear mobs that brought down Xi's government. More likely to complain about housing or jobs.
The fact of the matter is that Americans do have the ability to change the policies and actions of the US government. It's hard to do, requires collective action, and can fail, but it's possible, and there are quite a few example of it happening.
No American can do anything at all, ever, about whatever the Chinese government has decided to do.
Chinese social media is pretty vibrant with the exception that you can’t agitate for the fall of the government.