Drug sale and use is not victimless. The costs vary with the type of drug and the enforcement regime but the social costs never go to zero.
The selling of drugs may be undesirable some people's minds, "society" may decide it should be suppressed. That's your judgment but drug use remains "victimless" in the sense I described earlier - all people involved want the event to happen. Theft or assault are against cooperative victims who will come to police to complain (in the case of murder, the relatives would). So enforcement dynamics are different. That is all.
I'd mention that those opposed to drug laws would say the costs are predicated on the enforcement itself.
The selling of drugs may be undesirable some people's minds, "society" may decide it should be suppressed. That's your judgment but drug use remains "victimless" in the sense I described earlier - all people involved want the event to happen. Theft or assault are against cooperative victims who will come to police to complain (in the case of murder, the relatives would). So enforcement dynamics are different. That is all.
I'd mention that those opposed to drug laws would say the costs are predicated on the enforcement itself.