I prefer to believe the Medics (the real ones ...not the Western ones who are more apt at winning wars and should stick to what they do best and not justifying excuses for Drug Addicts) ...obviously.

You forgot to mention that Marijuana lowers your ability to cope with everyday life and the everday people who live in it and have to put up with the 'excuses' made by people who smoke it.
OH&S had to enforce the "Use of Harnesses" at construction sites where high elevation work was carried out. In the old days, nobody fell off roofs in the way that a stream of young guys did in the 90's. It was never promoted in the Media, to protect the family's honour, but all the young victims were under the influence of Pot.
...as was a Ferry Driver when it crashed.
as were Train Drivers in accidents,
as are a lot of people who are too slow to react and 'forgetful'.
Schizophrenic behaviour is totally associated with the use of Pot (only a drug addict would say otherwise and bring out crap dis-information to support so).
Life is hard enough. I got sacked because I decked a Pot head who was placing motorists and Pedestrians in danger during a Traffic Control job. He was just too "laid back/chilled out" , in other words "LAZY" to do his job and he was also Aggressive in his alco usage. The residual effect was that he was hard to 'work' with and I was stuck with him because no-one else wanted to work with him. Eventually, after 6 weeks of 'trying', I had enough and didn't care that he was 'Bigger' than me as he emphasised when we first met where he told me that he has 'Certain behaviour problems and he becomes agressive'. In other words - he thought he could threaten/bully me with some 'medical crapola excuse for abuse. Well I was no longer working as a Medic and I didn't have to tolerate such behaviour in the slightest. Its funny how, after disobeying my instructions as Leading Hand, he raised the "Stop" sign to protect him

.
There's a lot of people out there that don't need to tolerate your behaviour due to your addiction to Pot and its not just due to 'criminal' behaviour. Some Medics like the Govt Public System will protect your 'excuse', while others like the Private just say "Get out of my way fool!" ...then there's the other Medics

...I'm just trying to protect you from yourselves, let alone innocent people/family/friends who suffer from your apathetic approach to life.
"You don't need the weed." They don't call it "Dope" for the sake of it. Go out and do something for others, rather than feed a selfish need.