Hey, maybe alcohol should be illegal. But they tried that once and it didn't work. I doubt it would work if we tried it a second time.
But that doesn't mean we therefore open the floodgates to anything and everything. Even if the drug is less harmful than alcohol. If that drug is legalized and doesn't replace alcohol, we've added to the problem, haven't we?
As if "we" should be social engineering by force and coercion anyway. It is repugnant to a free society based on republican rule. In a democracy, well then maybe. Do you live in a democracy?
The problem is Abuse... Even Food can be a health hazzard.
Look at all the Obese people in the US.