This comparison is so spectacularly wrong that it barely warrants a response, but here it is: Some acts (and what matters here is the act itself, not the legal

This comparison is so spectacularly wrong that it barely warrants a response, but here it is: Some acts (and what matters here is the act itself, not the legal definition of the act, so I refer to acts not crimes) are defined as an act on a third person without their consent. One definitionally cannot consensually murder or batter someone else. This is why it is correct for these acts to be illegal. Taking drugs is not in this category. While it is certainly possible to harm others through one's drug use, it is also certainly possible to take drugs without harming others. The whole point of legalization is to create structures and incentives that minimize the harm to 3rd parties. This is true of many vices: gambling, prostitution, alcohol, tobacco, pornography. In he case of drugs it is particularly strong because much of the harm that comes from drug consumption is harm that occurred in the production and distribution of said drugs.