That's your own fault for being an incredibly weak person. There are millions of people who simply smoke marijuana and nothing else, while leading a productive life. I smoked pot for about 6 years straight. Nothing else. I had no real problems with it; maintained a good GPA, got into a very good college, held down a job, etc. etc. I just grew out of that phase of my life.
You, on the ther hand, can't blame pot for all your troubles when YOU are the one shooting up heroin and snorting coke and dropping hits of acid while popping pills of vicodin. If you had any convictions back then then perhaps you wouldn't have allowed yourself to dwindle into such a sad state of drug addiction.
Nothing is sadder than a drug addict blaming the drug. It's like a convicted murderer blaming the gun. "I swear Judge if that gun wasn't in my hands than I wouldn't have killed anyone! Please believe me!" //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif.