Precisely what i said: Why have controlled substances at all?
We have controlled substances for particular reasons that have been articulated and decided upon by society, through its representatives, as suggested by The Joker and the Thief. But that doesn’t mean that there is any greater inherent logic to controlling drugs than there is to controlling guns.
I appreciate that, because we are talking about specific cases, there is a basis to look at the law as it stands. I think you did an admirable job of outlining the different cases in the OP. Remember, though, that my original contribution to this thread was in response to a more general point about what is and is not acceptable social policy:
Personally, i have no real problem with the fact that some drugs require a prescription, although i find that somewhat hard to square with my belief that recreational drugs should be legal. Anyway, my point here was not to agree or disagree with waiting periods; it was simply to note that there are products other than guns where society has made an active decision to place restrictions on sale and use.
I understand that, legally, firearms enjoy a special status because they are explicitly mentioned in the Constitution. But for me, as a matter of general principle, there is no less logic in placing restrictions on firearms than on any other product, and there may be more logic precisely because, unlike most other products, firearms are specifically designed to kill people (and animals, etc.) other than the operator.
As i’ve said on this board numerous times, i’ve moderated my position on gun restrictions considerably in the last 15 years. When i came to live in the US, i was aghast at the number of people with guns, and supported a system where gun ownership would be severely restricted like it is in my home country of Australia. Since then, i’ve changed my views for what i consider principled and pragmatic reasons, although i still support more regulation than some second amendment advocates would probably be happy with, especially regarding registration of weapons.
Whatever i think personally about gun ownership, i do agree with second amendment advocates that some gun regulation laws in the United states really can’t stand up to legal scrutiny. I’ll be interested to see what happens in the cases mentioned in the OP.