When, precisely, did I say anything about "marijuana will kill you"? That strawman's got his stick so far up his own ass that even Tankie logic can't compare.
Your bar is "it isn't toxic enough to kill you"? Really? That's not why we regulate drugs. At all. Anxiety medications and SSRIs are regulated because they are mind-altering, and they're all required to come with warnings that fucking with the brain chemistry of children has a proven tendency of causing suicidal ideation. The reason we regulate alcohol isn't because drinking a gallon of everclear will kill you, it's because it's mind-altering, seriously affects your judgement, is highly addictive, habit-forming, and has long-lasting deleterious effects on the brains of children. Even amphetamines, which are prescribed to children for ADHD, are regulated because while they have medicinal properties for certain brain chemistries, but in others lead to addiction and other deleterious effects. Psilocybin and LSD are regulated because they are hallucinogenic. Fuck off with that "if it doesn't kill you" bullshit. If something's regulated or banned, the reason is far more likely to have fuck all to do with its LD50 than it does with the fact that "it fucks with brain chemistry in ways that are unpredictable and can have long-lasting effects from overuse".