Yes, there's that aspect as well. Alcohol is just a byproduct of a biological process. Banning alcohol is on par with banning plants or banning compost. Likewise, banning marijuana is a fool's errant because cannabis is a hardy plant that's easy to grow. It's like trying to ban an invasive species. Once you move to stuff like cocaine or heroin, it becomes easier to target them because they are synthetic products that have chemical precursors. You don't even have to ban the actual drug but instead target the precursors required to manufacture the drug. This would be ideal because it targets drug production instead of personal use.