Opium is the most beneficial plant known to man.
Your solutions are wrong:
If opium isn't banned, everyone can grow poppies and enjoy natural opium latex. Nobody would use fentanyl. It wouldn't even be produced. And, yes, it cures alcohol addiction. Ethanol is a poison, morphine is a medicine.
I agree that open/free access to opiates is a solution and don't think I wrote anything against opium? - I mentioned better replacement therapy ie the actual drugs instead of methadone/subs.
I'm also not sure that Fent/synthetic opiates would go away if everyone could grow opium. It depends on cost and scale. Fent is cheap as shit for how powerful it is. I'm not sure mass cultivation (time + resources) would be cheaper. IDK maybe I have no idea I have never grown poppies and don't know the cost.
But I do know the price for 100 grams of fent and it's insanely cheap.
If opium/naturally derived opiates were available for cheaper/free from governments than sure it would probably reduce dramatically the amount of fent produced.
I'm not sure how I feel about your characterization of poison/medicine.
I don't want to argue about it either.
But I guess I'm genuinely curious as to where you're coming from with that statement and your experience. Are you an opiate user? alcoholic/recovering alcoholic or addict? mental health? everyone's experience is different so who am I to judge or critique.
edit again don't want to argue, but I guess I would offer a simple question about the 'most beneficial plant known to man'. How would you compare say, antibiotics derived from plants to poppies in terms of benefit to man?