I wouldn't have as much problem with a full scale war on drugs if we had the money to pay for it, but we are dead broke as a country. There are far more important things for us to worry about it. And frankly, I think our military can serve people better than as drug police.
Furthermore, fighting against the drug trade makes the drug trade even more lucrative as it limits supply. This would make drug cartels that survive even stronger. What you are suggesting is like fighting a hydra with a sword and no torch. The drugs are going to get where they need to be one way or another, and those who can get them there will profit immensely. The war on drugs has been a miserable failure and a phenomenal waste of resources.
You want to talk about inefficient government spending, this is a prime example. We might as well throw the money down a well. Legalizing marijuana would be the most effective way to cause direct harm and disruption to the drug cartels, organized crime, and even local crime. Its just like the underground alcohol trade during Prohibition which fostered unprecedented levels of organized crime in America. If you can't beat them, just join them. Everyone will be better off.
We had two bags of grass, seventy-five pellets of mescaline, five sheets of high-powered blotter acid, a salt shaker half full of cocaine, a whole galaxy of multi-colored uppers, downers, screamers, laughers…Also a quart of tequila, a quart of rum, a case of beer, a pint of raw ether and two dozen amyls. The only thing that really worried me was the ether. There is nothing in the world more helpless and irresponsible and depraved than a man in the depths of an ether binge. –Raoul Duke
It is hard to shed anything but crocodile tears over White House speechwriter Patrick Buchanan's tragic analysis of the Nixon debacle. "It's like Sisyphus," he said. "We rolled the rock all the way up the mountain...and it rolled right back down on us...." Neither Sisyphus nor the commander of the Light Brigade nor Pat Buchanan had the time or any real inclination to question what they were doing...a martyr, to the bitter end, to a "flawed" cause and a narrow, atavistic concept of conservative politics that has done more damage to itself and the country in less than six years than its liberal enemies could have done in two or three decades. -Hunter S. Thompson