If they dare....at risk of having their Countries taken over in return perhaps.
The Chinese...being the oldest continuous civilization on the planet....are students of history if nothing else.
You can bet they recall their former adversary the Japanese and how they came to grief when they tired to launch their infamous Greater Prosperity Sphere or whatever their War of expansion and conquest was called.....and will not make the same mistakes.
The Chinese understand politics, diplomacy, and economics....and can do each on a scale the Japanese could not.
Western Navies no longer have the numbers of ships or the industrial base that allowed the survival of the Western Powers during WWII.
Should War break out between China and the West....this shall be a very different War.
It might be a way of our writing off our Chinese Financial Debt if we can prevail....but at what cost in Lives, Ships, Aircraft, and National Treasure?