Smoking in the U.S.

This cartoon is satirizing smoking in the U.S.  Ted, the author of the cartoon, is being sarcastic about the food and drug administration declaring tabacco as a drug.  Saying that now all the idiots will be dead.  This is satire because its saying that idiots are the ones who smoke and do drugs, so without the drug how are they supposed to die off? And if the idiots don't die off then the world will be run by idiots and everything will become dumber.