This is exactly a regurgitation of the propaganda by CCP. They blamed western influence, education and cultural whitewashing of HK Chinese as the reason for the current protests and their citizens believe it sincerely. They conveniently overlook the crux of the protest, which is to ask for universal suffrage.
Even for a well educated, widely traveled main-lander, it is difficult to come out of this conditioning. I have some friends from mainland, currently staying in HK, who sincerely believe the general public is too naive to be allowed to make any decision. With the right amount of conditioning, people can be led to believe in anything even if it is contrarian to their well-being.
One can see grounds for arguing this in recent history, and not just in Hong Kong. But, to paraphrase C. S. Lewis: "Some say that the public is too naive to be allowed to decide. I do not contradict them. But I am still a democrat, because I see nobody wise enough to decide for others."
Plato has been arguing that if you don't select your surgeon or carpenter based on that person's popularity in making public promises, why do you do so for statecraft?
Politicians are elected by their promises, reelected by their performance. Also, there is no objective "skill" a politician can hold to be "good" like a surgeon or carpenter, your analogy breaks down completely.
Culture Revolution PTSD?