Earlier quoted context omitted.
This is a false equivalency. opiates and tobacco have vastly higher toxicity than marijuana - which is lower toxicity than aspirin or caffeine.
What's toxic with caffeine?
Caffeine pills & powder are far more dangerous. It is very easy to overdose on them, and death is not out of the question. It still isn't common.
With marijuana, it is virtually impossible to have an overdose that kills you (It's very difficult to find sources on CBD/THC overdose):
> An overdose on marijuana is dissimilar to overdoses on other drugs because marijuana consumption, in and of itself, is not life-threatening. But using too much of the drug can have hazardous results, which may increase the risk of death.
> For instance, someone who consumed a lot of marijuana may be unaware of their environment, which can lead to accidents or falls. Furthermore, marijuana intoxication has been linked, in some studies, with psychosis,3 a condition in which the individual is disconnected with reality, typically resulting in hallucinations, delusions, or extreme paranoia. A person who is having a psychotic episode may put him or herself in dangerous situations due to confusion or detachment. [0]
Synthetic MJ (K2) is far more dangerous, though.
[0]: https://www.projectknow.com/research/marijuana-overdose/