I think legalizing hard drugs like heroine, crystal meth and crack is absurd, but maurijuana being legalized should be reviewed by the government. Although I think it's been scientifically proven that maurijuana/THC slows the brain and senses down (think being the key word, don't quote me on that) which would obviously see a rise in unemployment due to being to stoned to bother going into work, I do buy into the whole legalizing drugs would cut crime significantly.
I don't know whether anyone here's seen a strong crack of meth abusers appearance, but it severely messes up one's looks. The face can appear gaunt, their weight will decease to dangerous levels and constant crystal meth users teeth often fall out, I think "meth teeth" is a term that's used to describe it.
I used to be addicted to cocaine and although I managed to quit it and have been clean for a number of years now, a bad and annoying habit of grinding my teeth has remained with me that I developed whilst on coke. So there are small cons that we might overlook without properly thinking things over. There are always the comedowns from drugs too, I was sky high on coke, but the comedowns were overwhelmingly bad. I don't know if anyone other drug users have experienced bad comedowns, but they are one of the main reasons that I no longer touch drugs of any kind, not even alcohol, to this day.
Fact is, people can be mind numbingly stupid and it's those that "ruin it for the rest of us." The government can never be blamed for making naturally grown drugs illegal, it's the stupid ones that are to blame. People get greedy and upping their dosage to please their own selfish cravings are the things that break up families and ruin lives. But there's no way that class A drugs will ever be legalized and nothing anyone can say will convince me of supporting it personally either. I also support scientific research into drugs especially maurijuana, it must be reviewed, I think the laws on weed are out dated.