IMHO, drugs which do not easily cause overdose deaths (like THC, LSD etc) should/must be legally treated same as alcohol (which is really just another kind of drug (which do not easily cause overdose deaths))!
IMHO, just like prohibition of alcohol had caused so much crime in the past (& that is why it had been forced to be repealed later), prohibition of other similar drugs causing so much easily preventable crime today!
We need to take lesson from our past!!!