Wild Speculation:
This phrase from Justice Scalia's dissent in Indiana v. Edwards is a foreshadowing of a phrase in one of the pro-individual-rights opinions in D.C. v. Heller: "As I have explained, I would not adopt an approach to the right of self-representation that we have squarely rejected for other rights -- allowing courts to disregard the right when doing so serves the purposes for which the right was intended." We'll see in a few days whether I'm right.
Antonin Scalia says that he is "not a strict constructionist and no-one ought to be . . ."
Antonin Scalia "A Matter of Interpretation" 1998.
The Second Amendment right has no textual limitations, merely a preamble listing one reason for recognizing the right.
State constitutions with similar preambles for their right to free speech do not limit that right to only the reason(s) listed in the preamble.
The use of the phrase "shall not be infringed" suggests a nearly absolute right. I doubt even Scalia will find an absolute right, but the text is there to support such a ruling.
..I don't think you are wakeable. Slumber on in snarky repose.
The first comment was asking for it.
Perhaps that's why Prof. Volokh chose the title he did for the post.
Re Craig, I don't doubt that Brennan, Marshall and Stevens have no problem abstracting from a right to its purposes, but I think that in general, Justice Scalia does.