You don't have to be a "druggie guy" to be against the War on Drugs. No other single government program has been as destructive to liberty as the WoD, just look at how courts have repeatedly-ruled to justify the WoD tactics, look at the state of the 4th, 5th, 6th, and 8th amendments and ask yourself if they are actually still binding upon the government -- certainly not the 4th; for according to the fourth there is no "probable cause" which negates the need to get a warrant: the probable cause is the reason to get a warrant.
Furthermore, how many of these court decisions are ultimately based upon Prohibition decisions? The 21st amendment repealed in full the 18th Amendment, this means that all Prohibition-related judgements by rights should be invalid.
No, all you need is a sense of justice to realize that the War on Drugs is a Bad IdeaTM.
Well, in a democracy, cheap legal dope and welfare, is a match made in heaven for the left.