If I become an American citizen and an overseas Chinese in the United States, what will happen to the United States if something happens to China?

See what things, economic disputes and the like, generally regardless. Criminal personal safety, help you find a lawyer or something. The United States will not interfere in the name of the country.

China will consider diplomatic influence and generally roll with the punches.

Once I was robbed while traveling in China, I called the police. I'm too lazy to tell him that if he can't find it today, I'll report it to the American consulate and find it all this afternoon.