[tech2]

Both of the issues you cited with drugs (harm caused by action performed whilst on drug) and prostitution (coercion) are the crimes rather than the drug or prostitution itself.

Driving while intoxicated should certainly be a crime, as should rape, or forms of coercion like intimidation. These are one step removed from the acts themselves though.

With prostitution we should be acting to separate the violence etc from the act, and one way to do that is to not punish the victim. Provide support, reduce moral judgement.

Regarding sodomy (not just buggery, but onanism, buggery, oral sex, anything non procreative), I suspect the reason provided initially would be that it's preventing conception. This limits the expansion of a culture. The aspect of disgust came later (see ancient Greek consideration of the topic vs Abrahamic faith).