What are those personal reasons and how do you know he has them?
I don't equate drugs and alcohol, either.
Nobody "equates" alcohol and any other drug - but alcohol is a drug, and the War on Drugs has all the practical and philosophical failings of the War on Alcohol aka Prohibition.
We don’t have a drug problem or an alcohol problem. We have a God problem, or rather a “we don’t want God” problem.