I think most, but not all drugs should be legal. I mean, the government makes certain drugs illegal to protect its citizens. You would die at an extremely young age if hardcore drugs like bath salts, cocaine, or crystal meth were heavily abused.
I agree. Coke, Methamphetamine, Heroin - they're all are known to cause adverse effects from heavy use.
However, the are a number of other illegal substances which have been researched, studied and documented to have either no, or minimal adverse effect on mental health. I believe those should be decriminalised, and people to be educated on potential dangers and responsible use of these things.
And when the government stop wasting money trying to hunt down these "criminals", they can put the money into better addiction therapy support.
It doesn't really makes a difference if it's illegal or not, addicts gonna be addicts.