Surprisingly, I agree with that.
BUT, I think you mean it a different way then I do.
I would order every US DEA agent or any other US anti-drug personnel out of all foreign countries immediately.
Then I would issue a proclamation, warning the rest of the world that we would no longer try to stop them from shipping drugs.
What we would do is board EVERY vessel entering US waters, and any found to be carrying drugs would be sunk, on the spot.
The crews of those vessels would NOT be arrested, but they would not be rescued either.
Any small aircraft (the kind smugglers like to use) entering US airspace would be intercepted.
If the pilot refused to identify himself or otherwise ignored instructions, that aircraft would be immediately shot down.
I would end the war on drugs in other countries, and focus 100% of the anti-drug efforts on the US.