There are plenty of actions beyond military options like economic, political, and legal. China could be isolated financially with trade embargos for example. US

There are plenty of actions beyond military options like economic, political, and legal. China could be isolated financially with trade embargos for example. US treasuries and other nations instruments that China owns could be seized and extinguished. Bank accounts can be seized. There are many actions that could be taken if countries really desired. However, the alluring call of cheap manufacturing and a large population to market goods toward clouds most countries from taking any actions.