If you truly believe this, then you wouldn't want to have drug addicts in the first place. Making it easy to start very addicting drugs in the first place (like heroin) with little to no consequences means we will most likely have more addicts.
If you look at the stats on Portugal, lifetime addictions increased after drugs were de-criminalized. Legalizing it will make it even worse because it won't have any negative stigma.
It's very telling when a community that is supposed to be about honesty down votes me because they don't believe in my opinion. Without an honest discussion with all view points, your issues will never get solved.