Comparing alcohol and drugs is also naive.
Why so? How is alcohol not a "drug"? When alcohol was illegal we had some of the same problems that we presently have with "drugs", by which we now mean those that are always illegal and those subject to prescription abuse.
I would guess that we have millions of Americans suffering from alcohol abuse; drunkenness, homelessness, violence, early death. What I don't see with alcohol are the violations of the Second and Fourth Amendments to the Constitution such as civil forfeiture, exigent circumstances requiring SWAT teams, and gang wars.