The number of gov-backed trolls is overestimated. Majority of those are simply real people using VPNs. It may sound hard to believe, but think twice about the huge size of population and high rate of Internet penetration.
Chinese population is largely nationalistic and conservative, and some hawkish groups are very active online. There is a joke that Great Firewall is not for controlling Chinese people but protecting Westerners from Chinese netizens.
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