Why do people want marijuana legalized?

I don’t understand this at all. Who could want this stuff legalized? Marijuana smokers are 6 times more likely to get lung cancer than tobacco smokers, and marijuana is highly addictive (look at the statistics, more teens are in treatment for marijuana addiction that all other drugs combined). According to studies done by Dr. Gabriel G. Nahas, marijuana can cause irreversible brain damage and destroys brain cells. Why would anyone want this horrible narcotic to be legal?

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