Again... It's a propaganda weakness inherent to authoritarianism.
Young people rebelling against the establishment and embracing the idea of democracy is an age old story. It is the perfect demographic for Western influence campaigns to target because it fits the psychological profile so well. Young people every where resent the fact that they lack political power, believe they know more than everybody else, and yearn to be free of all authority. These facts make them very susceptible to the promises of liberal democracy, because liberalism is all about empowering the individual, rebelling against authority, and pursuing freedom above all else.
It's not until people get into their thirties and forties that they realize the world doesn't work that way; and that the "freedom" offered by the West is nothing more than a different form of enslavement. When the thrill of protesting on the streets and throwing rocks at the police wears off, they will realize no, you can't survive off of pride parades and smoking weed and "revolution in our time." That there are objective power dynamics at play, which Western media actively attempts to hide in an effort to fool people into acting against their own interests.
Unfortunately, young people must be taught the hard way about these lessons; and the failure of their societies is the price they must pay. Look at the Arab Spring - that was an attempt by the West to rally the Muslim youth to the cause of liberal democracy. It brought little more than chaos across the Arab world, didn't move them up in the world what so ever, and failed in pretty much all of its goals.
The same will repeat, else where. Liberal democracy doesn't bring freedom to countries - it makes them vassals to the West. Look at the Koreans and their president's shameful display in Washington; or the Japanese and their commercial interests getting wrecked by US sanctions. Look at the pathetic birth rates across East Asia, and the South American countries run by drug lords. But democracy is a hell of a drug - by the time their young people wake up to the state of their societies, it'll be too late. The worst is yet to come.