At least they haven’t been dumped in the ocean to make artificial reefs -yet.
They even gave up on that idea with our massive piles of empty containers here in NJ when the environmentalists wanted them all cleaned of paint (the cost would have been too high). FWIW, those piles have shrunk considerably; I suspect it is because Americans can buy less cheap junk now anyway. If you’ve seen the fleet of ships mothballed off Singapore, I suspect many of them used to empty their wares here...