With our current drug policy:
Street drugs are readily available.
Drug lords have gotten rich, powerful, and deadly.
We need to pay for more prisons, guards, judges, attorneys, court houses, etc.
People rob and burglarize us to pay for the expensive street drugs.
Citizens who earn the displeasure of politicians can be selectively prosecuted.
With such a successful plan, why would nut cases suggest we change it to one like we use with another drug--alcohol?