Lobbyists for who?
State and local governments have dumped more trash in the ocean than any corporation, and, of course, the US isn't the only country dumping trash in the seas.
It isn't going to be cleaned up until it presents a truly imminent threat to the entire world.
As with pollution, and carbon emissions, the developing world isn't going to give up its chance to at least pull up equal to the developed world by restricting its currently unrestricted growth.
If the US never let another molecule of green house gas escape from its technology and never threw so much as another coke bottle into the ocean, the effects of unchecked growth in the developing world would still wreck whatever ruin upon the earth these practices are capable of.
This paranoia about corporations being the source of all that is bad in the world is just that --- irrational fear and suspicion.
How simple life in your mental world must be.