Uhm, you may know beer -and lord knows I love each and everyone of all of us homebrewers for that common bond. But medicine is definately NOT your forte -either that, or you're severely clouding your judgement if you really believe what you just said regarding marijuana.
While personally I have no problem whatsoever with legalizing it, your diatribe regarding opiates is garbage. It certainly would not put Vicodin, Oxycodine (etc etc) out of business -they would not be used for the same purposes, and one would not supplant the other -thats like saying hombrewing beer will put Jack Daniels whiskey out of business, or that cigar sales hurt cigarette sales. Entirely different animals, entirely different market, and other than the fact that alcohol is the common element in the alcohol-based drinks, in this regard they do not cancel each other out.
I'm a case in point. I love beer (who on here doesn't?) but do not drink whiskey, do not LIKE whiskey in ANY of its variations -and if I were no longer allowed or able to have beer, I wouldn't switch to whiskey -I'd either brew illegally or just not at all.