The draft of the Constitution of the United States of America was written on hemp paper. Congress tried to prohibit the usage of Alcohol between 1919 and 1933 to no avail. No good came from that. Marijuana is a lot less dangerous than alcohol. 400,000 deaths a year are attributable to alcohol.
Millions die yearly from tobacco.
More people die from car accidents than have ever died from marijuana. NO-One has ever died from using marijuana.