Everyone already explained why your view on this issue is misguided, so I’ll just add one thing: even if these people are guilty of drug smuggling, that is not a crime that’s punishable by death in the United States.

Why can’t they just intercept the boats and arrest the people on board if they truly have evidence of smuggling? It’s cheaper in the short term than wasting expensive missiles, and much cheaper in the long term when you factor in the reparations we’re going to have to pay to the families of all the people that were murdered.