Powerful ad.
My gut feeling is that there will be a day in the future where everything in China is going to boil-over just like any other totalitarian regimes in the past. It could be 20 years from now when Xi dies or some type of student uprising again, or could be from the HK/Taiwan situation.
The behavior of the Chinese government and as they call it "the hand of Beijing" has a self-propelling streisand effect, the more you clamp down, the more it leaks and at some point, it will boil over. Nationalism is tribalism in its glorified, patriotic form. On one hand, we have great men who strive to make the world a better place - journalists, scientists, mathematicians, teachers and community workers and on the other hand we have ugly human tendencies surfacing in a powerful form from politicians.
Every politician should listen to Jiddu Krishnamurthy's UN speech in 1985: https://www.youtube.com/watch?v=qcga8ATBNh0
There rest of the world needs to fearlessly criticize Chinese censorship as it is only going to get worse. If the Chinese government is insecure from opening history books, hell even calling Xi Jingpin a Winnie-the-Pooh; that's not the kind of superpower I wish to see in this world.