China doesn't massively censor its society based on what the authorities decide is correct?
You can't get any more of a controlled, politically correct society than China when it comes to censorship. They're the actual definition of political correctness censorship.
How about porn in China? The authorities decided long ago that was politically incorrect, and it's illegal.
How about Japan censoring - for 70 years - all sorts of aspects of what they did during and before WW2?
How about Singapore's censorship dictatorship, where Lee Kuan Yew ruled the news media there with an iron fist, and directly dictated what was culturally and politically acceptable. The very definition of political correctness based censorship.
Is your theory that South Korea has an open society when it comes to political correctness? I completely disagree, they outlaw anything even remotely pornographic, and they block all pornographic web sites. Again, the definition of enforced political correctness.
Then we can get into Thailand, which is censored heavily by their political correctness machine; it regulates everything from speaking out against regimes to pornography.
How about Indonesia's anti-porn laws, the very definition of enforced political correctness:
http://www.abc.net.au/news/2008-10-31/indonesia-passes-tough...
This only begins to touch the surface of the political correctness censorship rampant in Asia. And that's all before we get into the really bad examples, like Myanmar and North Korea.