Alcohol is legal. So are cigarettes. Both are also harmful to fetuses. Your post proves nothing.
So far as we can tell pot is a lot like both of those.
The most poisonous effects are based on frequency of use and dosage.
The odd thing is, with so many things, is that the burden of proof seems to fall on those who say we shouldn’t do this, that, or the other because it’s bad for you/us.
Why isn’t the burden of proof reversed? Proving that using something isn’t harmful is a much safer course of action than making the skeptics or critics prove the unknown unknowns, that it is potentially harmful.
We are a risk taking species for sure. As long as we aren’t all forced to take the same risks I guess it is ok and beneficial for us as a species.
That’s why I’m ok with the non gmo movement or the more natural or organic movements. Not because I agree necessarily but it does take some folks out of the risk pool if things go sideways.