Apple Hides Taiwan Flag in Hong Kong

"To fight the censorship cancer, would the western world have to agree to exclude and isolate China?"

I would rather wait the day our beloved western world agrees on a single, objective, independent definition on what censorship is, then I would want to see people like Snowden, Manning, Assange and similar others walk free and unharmed. That day I could concede we would have superior moral grounds to exclude and isolate other countries.

Can you extrapolate about the link between whistle-blowers and the definition of censorship?

It's unclear to me what point you're intending to make.

It's simple and clear: western country censors media as well.

My point is that their "crimes" were painted as such by the same establishment which got damaged by their revelations, while others would find many of those revelations a public service. Forcing the media to align with the establishment POV, with the intended purpose of manipulating public opinion about those people, is not much different from Chinese censorship: a pot-kettle-black scenario in which the cleanest one stinks badly.

I think you're conflating propaganda with censorship, but I suppose the effects are similar ... or maybe they're the same thing and I am under-informed.

edit: or maybe that's your point and that's why you mentioned the definition?

They're not the same thing but can be tightly linked. Propaganda is when say a government controls its citizens through lies spread by the media, censorship can be the step further to prevent those who don't buy the lies from exposing them, usually it's used when propaganda alone doesn't work, which is the case of people not divided in small factions fighting each other (lefties vs righties etc). Basically in the western world we have more propaganda than censorship because in "divided and conquered" contexts propaganda alone does still work; people buy the lies then fight against the neighbor ignoring the evil king so no need to make them feel more oppressed than necessary, a step that could incite revolts.