riiight.. Booze has proven to be a destructive influence on youth and adults alike, it’s addictive and controlled yet we still have issues with DWI/DUI and alcoholism and under-aged drinking so, just to be “consistent” we need to add pot to the equation because potheads need legitimacy.
Nope, the logical thinking for someone in your position would be to push for a ban on alcohol. If your criteria is that harmful substances should be illegal, then Prohibition is the only logical choice. However, logic is often in short supply on this topic.