The war on drugs has failed, drugs have won.
There are drugs on the schedules that can be grown at home, significantly reducing the cost of medical care and allowing homeopathic remedies for many chronic conditions that are currently costing Americans millions annually.
We also have the laws that we continue to treat addiction as a criminal issues when it is well documented to be a health related issue. There is also the issue that addiction more often starts with prescription use rather than recreational use.