I have a friend who regularly takes oil (from organic farming) and also smokes marijuana (from organic farming) and claims to feel so good that he can take off (energy, mood and creativity).
I know about the cases when they started taking it as a medicine and against cancer ...
It is quite logical that marijuana is demonizing because its deregulation is by no means in favor of the pharmaceutical industry.
Why ?
Well, if people use THC to boost immunity, YOU WILL LOSE MANY DISEASES.
If they are less sick they need less medicines and medical services.
If they need less remedies, someone will sell less medication and have less sales revenue.
If it has an impact (money, power, links), it will use it for making
the decision to ban the use (I TO "LEGAL", PARLIAMENT, CONGRESS AND SIMILAR).

Conclusion, as always is all about money (not around Hippocrates and others).
Continue in the same rhythm ...