Obviously due to large scale, western PR campaign to tarnish China’s reputation. The public is easy to manipulate.
At the same time, China is at a disadvantage because the public does not trust Chinese media.
That's 1950 theory. My next door neighbour owes me 100k & you are surveying his best friend what's his view about me.
In current world, a particular country's view doesn't matter that much. What matters is whose views are putting forward more robustly, creating confusion. That's psychological warfare in media.
They can have any view about China, what China needs to do is resurrect the boiling anger among rest of the world in front of them.
Asking the uncomfortable questions they don't want to be asked.