Probably the stupidest phrase you'll ever hear. It's like saying the war on murder, rape, or all crime is lost, so we should have laissez-faire attitude relating to those problems too. The fact is there are tens of millions of drug addicts in America and many more that are affected by the collateral damage drugs cause. I'm not an absolutist. The approach of just letting people do as they please is not applicable in this case. If anything we need to ramp up our efforts to combat drug use.