Kids addicted to gaming -> bad family relations & bad grades -> decreased productivity & unemployment -> social unrest -> people revolt against the communist party.
I'd argue the fact that CCP solves problems at the source is exactly the reason China didn't crack when people thought it would.
Because the US military is not about defending trade, arguably it's the very opposite: it is China's goal to protect global trade as it is the biggest trading partner of most countries, while the US invests heavily to maintain the ability to disrupt trade of any country it thinks is benefiting too much. (e.g. the first island chain for blocking China's access to the seas - https://en.wikipedia.org/wiki/First_island_chain)
Google doesn't give me any result if I search "武汉 肺炎" (Wuhan Pneumonia) prior to December 30. December 30 was definitively the first time it appeared on the news, and when it did, it quickly became the top news in about a week.
We have a real-world experiment going on right now - East Asia vs. the West. The result is clear despite other variables like population density being very much in the west's favor.
Western countries most likely still aren't testing mild patients.
SK and China went for full containment: every single positive case is hospitalized and close contacts are quarantined in hotels so few cases are missed.
While in New York, hospitals are focused on saving critical patients. If you test positive but have mild symptoms, you are usually let home anyway so it doesn't really make sense to test most people who would be taken very seriously in Asia.
However, the latest cluster in Heilongjiang involved an asymptomatic student returned from USA, completed 14 day quarantine, tested negative before and after, but still went on to infect her family and neighbors who infected more at the hospital. Total confirmed cases in this cluster is ~50 right now.
Most of the spread in this case happened because of negligence in the hospital thinking coronavirus is eradicated there so they didn’t take precautions. Coastal cities like Shanghai are taking good measures so there hasn’t been a problem despite it being where most international flights land and basically 100% back to work for over a month now. The biggest danger is people becoming tired of wearing masks and avoiding gatherings over time.
Thousands already died in Italy over the last several days with less than 20,000 cases (most of those cases are still active so thousands more will die in the coming days before the lockdown even shows effect, if it is effective). You're looking at millions dead if a significant portion of the population is infected.