The Chinese are waking up to discover they have lent so much to the USA that they are never going to get it back.
It's not that the USA, can't pay them back. After all, the USA is still the biggest economy in the world. No, it's that the USA won't pay them back.
And the USA won't pay them back, not for economic reasons, but for political reasons. Yes, the USA is insolvent because of political reasons.
So you can imagine how the Chinese feel. They feel they have been taken advantage of. They feel they have been duded.
Not only has the USA taken their money, but the USA is confronting them in the South China Sea. And to add insult to injury, the USA lectures China on human rights.