That's not the point.
The point is that addiction is an illness. (Yes, even for poor addicts, not just Rush Limbaugh). We are treating a medical problem like a criminal one, we lock up more people than any country in the world, and we've created a permanent criminal class.
Every other country got this and treated it like a medical problem. America figured out that there was a way for Rich people to make money, so we got the War on Drugs.
If addiction is an illness so is homosexuality.
I have taken highly addictive narcotic drugs way past the recommended dose for long periods of time and never once felt any urge to abuse them. I stopped taking them cold turkey with no symptoms of withdrawal at all. I know people who get addicted after a single drink. I also know people who exhibited all the signs of alcoholism and stopped drinking without any urge to ever take a drink again, Addiction is a combination of being susceptible to behavior modification and choice, it is not a disease.
By the way, every country in the world currently treats drugs as a criminal problem, not a medical one. If they don't the US cuts off foreign aid and institutes economic sanctions against them. At least get your facts right if you want to discuss the issue.