The real reason to turning hostile towards China is because of their near constant cyber attacks. China has been attacking us electronically for years trying to access government records, company databases, literally anything and now the government has finally had enough.
It's the main reason everyone in Asia is turning against them is for their constant cyber warfare.
Although, we call it cyber attacks but its almost all corporate espionage through pretty simple phishing attacks. The problem is that nowadays every company has got some government contract so sometimes they hit government secrets. Doesn't matter how tight government security is if your contractor is skimping.