I completely agree that ecstasy It is becoming more and more apparent that the majority of all drugs negative effects have been severely dramatized and that current research and experience have clearly over stated the dangers associated with a vast majority of drugs. Here is a list of a few drugs and the supporting research for each. Not all drugs or research are posted.....
Marijuana: Once shown to cause insanity, lack of ones ability to control themselves, a gateway drug and much more ( for example http://www.drugfreeworld.org/drugfacts/marijuana/the-harmful-effects.html) . Now research/experience state otherwise (example here http://www.businessinsider.com/health-benefits-of-medical-marijuana-2012-11#)
Crack/cocaine: Was largely over demonized by the anti drug hype of the 80s and was claimed to be one of the most addicting substances in existence. Here's a newer study that shows otherwise : http://www.forbes.com/sites/jacobsullum/2013/11/04/everything-youve-heard-about-crack-and-meth-is-wrong/
Methamphetamine: Widely viewed as the worse of the worse," Most addicting, destructive, make you do all sorts of horrible things " drug out there. While allot of research, experience, and hindsight do show that these negative consequences can occur, there is also a surprisingly large amount of this drug being prescribed to treat ADD, ADHD, sleep disorders and obesity. Though many of the drugs are not "Methamphetamine" they are however "Amphetamines" and there are FDA approved, prescribed "pure methamphetamine (relatively speaking pure)" medications that exist today (such as Methodise and Desk's). Here's a post addressing some of these things as well as talking on the study performed (possibly the same as the Crack study but ill post it anyway) http://www.drugpolicy.org/drug-facts/methamphetamine-facts
Ecstasy: Again said to be a horrible and dangerous drug. Can kill on first try and just as meth causes permanent brain damage. Again, a study suggesting otherwise : http://www.theguardian.com/society/2011/feb/19/ecstasy-harm-brain-new-study
My point being, most of the "facts" about drugs are not fact, on the contrary over dramatized hype to create fear in the population and are backed by evidence and studies that were either flawed or entered into with a predetermined opinion on the studied substance. The media and government agencies did such a well job of this that even today it is accepted as a fact that Meth, crack, Heroin, etc are all proven to be extremely fatal even from the first use, while studies now are showing otherwise. This in itself is a good reason to allow study and further research into these chemicals.
Point 2, A majority of drug related prosecutions are entirely possession based meaning no other crime was being committed other than possessing the drug in the first place. Though this contradicts that idea that for a crime to be committed there must be a victim i must sadly say that this is the world we live in today.
Point 3, Prohibition hurts the economy and the population. It hurts the economy by putting a strain on funds that could be used in other places than fighting drugs, incarceration, etc. It also eliminates all possibility of a tax or licensing system to be implemented to create revenue.