Marijuana fails to improve symptoms, duh.
But it does make you high.
Dunno about that - when my stepmother was suffering from cancer, marijuana was the only thing that relieved her pain with a minimum of side effects. Fortunately, she lived in CA at the time, where it was available.
Personally, I don’t have a problem with people using it though I don’t partake myself. I would point out that not everyone is the same; personally, I have a paradoxical response to most of the codeines or opiate types that are supposed to be sedatives or systemic depressants. Codeine acts as a stimulant for me - which I’ve had to demonstrate to a number of doctors over the years. Not everyone reacts the same to medications.