Overfishing is a serious problem. It is difficult to solve when international waters suffer from the Tragedy of the Commons. We stop, no one else does. I don’t know the answer.
“Overfishing” is a political term coined by envorowackos in the late 60s as part of its war on natural resource harvesters. There is no such thing in reality as “overfishing.” Commercial fishing is heavily regulated and at time fishermen needed to take lawyers along for the trip.
Sportfishing on the other hand is a derby fight for the last fish.
Put bigger guns on the Coast Guard vessels ... you get one warning and then it’s “feed the fish time”!