Isn't it pretty unlikely for them to try to use force to back up fishing boats secretly popping into Argentina's waters? That would be making a big noise to continue doing something that the fishing fleet was trying to do quietly, basically calling attention to their shady behavior. And wouldn't using force there be close to an invasion over one source of cheaper fish? That would be a really aggressive escalation, might alienate many countries, etc.
Surely China has bigger fish to fry (rimshot) with its foreign relations.
Surely China has bigger fish to fry (rimshot) with its foreign relations.