taking heroin is merely the temporary relief form the typical pains of existence we all experience, to be replaced with a far far worse and much greater pain of addiction
whatever problems you had in life before heroin, are now 100x worse after
Again, those are baseless assertions... My drug use has improved my quality of life every single time, meth, heroin, cocaine, lsd, psylocybin, ecstasy, cannibus... all have had positive utility to me.
For some people, yes, it temporarily removes the pain... for some this is enough to have stopped the intention of suicide and turned their life around... for others it has made their life bearable... and of course, for others they have chosen poorly, and made their life worse...
But we don't guarantee that the outcomes of your life's decisions are going to be optimal... but we must give you the choice... for removing an option, or rather, adding destructive economic disincentives to making a given choice, can only lower the utility of the outcomes, as you have removed an option, not provided a better one.
So, for example, if you were to provide the help some people require and they chose this over heroin, you would have a point, but you can't provide that help, so instead you chose to make the lives of those that make that decision even worse... that leads to worse outcomes for everyone.
No, I'm not immune from addiction... but until I steal from you, or harm you, or cause you problems directly, it's an option I should be free to choose...
You may be one voice in many, but ignorance can only be dealt with one person at a time... you are clearly ignorant of any rational framework with which to discuss this topic.