> And before we go into “rights”, just because a country irresponsibly has a larger population, doesn’t mean that country has unilateral rights to destroy the oceans.

It's not about "rights", it's about actually making things happen. Telling China to consume less fish with the justification "you do the most damage because you have more people" isn't going to cause them to actually regulate it or do anything to curve consumption. It's childish playground behavior, but if the children have nukes, you won't get them to do something they don't agree to.