This simply means that most illegal drugs should be legalised so that people know what's in them too.Your more safer drinking a pint of beer than taking pill. Least you know whats in it
There is no scientific argument that alcohol is safer than unadulterated MDMA, in the short term or the long term, in fact quite the contrary. It was shown during the Leah Betts case, that much of the anti-drugs message was peddled by the drinks industry, fearful of losing out if people found other ways to get their high.
This is a decent article, the purity of E is way up on previous years, making it more likely you'll accidentally OD.