You can say that, and won't even be wrong, but saying that an actor is not control of its actions is not the same as saying that they must not be restricted in their ability to act upon others.
A serial killer is not locked up because he or she is a serial killer but to protect the rest of us who are not. A drug user is locked up because he or she is a drug user, not because the rest of us need protection from a near-comatose stoner.
A serial killer is not locked up because he or she is a serial killer but to protect the rest of us who are not. A drug user is locked up because he or she is a drug user, not because the rest of us need protection from a near-comatose stoner.