However thoroughly they choose to perform their jobs in their country should be of no concern to Canadian Citizens.
The only reason that mail is driven through the USA is due to cost, presumably.
We fly mail up north.
We should probably fly mail to that island as well if it's a matter of national sovereignty.
It's insanity that Canada Post has been allowing packages potentially containing Cannabis to travel through the US border en route to Canadian Citizens with their name and address right on the package.
I foresee a class action between the residents of the island and Canada Post brewing if it is not already in the works.