Blip you can go to hell. That technically something does not cause death does not mean it cannot cause grave harm. Mescaline and LSD made my brother paranoid and brought on a type of schizophrenia. He led an unbearably sad life, and when he died at age 49 in July 1997 of an aortic aneurism we all felt his torment had come to an end. Death was mercy to him.
I do sincerely apologise if my comment caused you hurt. As it happens, I too have a close relative with schizophrenia and, yes, observing their lifestyle is like watching a slow-motion suicide. While I would never wish death upon her, I can well understand how the inevitable could be termed a blessed release.
However, you appear to be labouring under the misconception that LSD - or any psychotropic drug for that matter - "causes" schizophrenia. This is not the case. Generally speaking, those drawn to sustained drug abuse already have a predisposition to some form of mental illness, whether engendered by genetics or environment. Even a quick Google will confirm this. If you require further evidence, feel free to let me know and I can refer you to a number of scholarly texts. The truth will set you free.
In terms of a wider argument, prohibition didn't work with alcohol and it doesn't work with other drugs. Until such time as most of the population, and particularly the politicians, realise that, there will always be unnecessary victims and associated crime. Not to mention, unfounded myths and stories to frighten the children with. Your concern about how Government controls its population might be better directed at the phantoms of fear created in relation things like drugs rather than whether or not they will poison you physically. Why would they when they already have a complicit media to assist in poisoning your mind?
You might be interested in learning a little more about how this works by viewing the BBC Documentary "The Power Of Nightmares" which, rather than the spectre of drugs with "roots all the way to hell", deals with the myth of terrorism. Its fascinating. The other two parts can be found linked to this one if you are at all interested.
http://www.viddler.com/explore/TomHansen/videos/27/
Again, apologies for any pain which resurfaced as a result of my comment. It was flippant and, having re-read your original comment, I could have been a little more sensitive to what obviously was a particularly tragic episode for you and your family.