Those of us who are in favor of legalizing drugs on the principle of cognitive liberty -- that every adult should be free to do what they will with their own minds -- should support the legalization of all drugs, not just their favored drugs.
We should also move away from blaming substances or their users for addiction, and look at what's missing in people's lives, at how the world is broken and lacking and how this dysfunction is leading people to seek solace in doing things that make them feel good, even to their own detriment.
The war on drugs has plainly failed to solve addiction, and will continue to fail, because it does not get at the root of the problem, which lies not in the substances, nor in their users, nor their suppliers.