Whats your opinion on marijuana?

Everyone is entitled to his or her own opinion so lets try to be respectful and mature :D. My opinion is that I think it should be legal for many reasons. If you have seen Super High Me or Totally Baked then you know the facts and statistics that I am referring to. If things like alcohol, cigarettes, and fast food which all can kill you is legal, then why not marijuana? Alcohol can cause liver disease, cigarettes give cancer, and aspartame eats holes in your brain... but marijuana can not kill you. I am a pot smoker but I believe there should be protective measures set in place governing marijuana, if/when it becomes completely legal, such as the licences they have now that you need in order to obtain it. There are people in prison who have gotten 5-Life for marijuana related charges where as you get 5-10 years for ... doesn't that seem a tad odd? Also in the movie Super High Me, the doctor that he has regular visits with during his experimentation admittedly used to be a pot smoker, and he still wen't on to be a successful doctor. So I feel it should be legal, why not? Whats your opinion?