You have touched on one of the many factions involved to make this an unsolvable problem, as long as White sharks and seals are Federally protected.
Some people want the sharks wiped out like before the Federal Protection, and others argue they are in their natural element and it is us who have to give way.
There are many other groups and some of the people who are trying to mitigate the problem are not inviting the public to get involved because of so many hot disagreements . -Tom
I think most critters should have a status somewhere between “endangered” and “nuisance”...