Look what happened when we legalized alcohol.
Really? I believe the more appropriate look-back is what occurred as a result of prohibition.
You can't save people from themselves, but neither can you prevent horrific and spiraling unintended consequences when the government extends itself in an attempt of doing exactly that.
As you are a part of the government, particularly in enforcement, I'd have to respectfully conclude you are too close to the problem, which is government, to recognize the solution, which is certainly neither the status quo or more laws.
