>>The Hague has no authority.
Actually, they do. China signed and ratified the treaty placing them under the Hague’s boot-heel.
Yeah but the PRC will just renounce the treaty and the court. China will keep building and fortifying “new islands” and who’s going to stop them? It’s certainly not worthwhile for the USA to get in the middle of this, no matter how bad China’s behavior is here. There will be noise and bluster from various nations, but what is going to change?