Dumb. They send the drugs, because there is a market to sell the drugs to dumb asses for a profit, as we are replete with dumb asses, competing for Darwin Awards, to take themselves out of the gene pool, because dumb asses will be dumb asses, so it's a seller's market and a dumb ass will beat a moron to the door to be in line to buy.
Venezuelan drug cartels simply cannot compete with Mexico which supplies 90% and basically has favored nation status with the US, so you don't see us blowing up boats off the Mexican coast. I kind of figure the drug thing is just a lie, as Trump would really like to do regime change down in Venezuela and take over the oil.