An interesting aspect of the situation is that for all the smug assurances that the Supreme Court has already spoken on the question of whether there is a strong link between the right to bear arms and the obligation to participate in a "well-regulated" militia, the fact is that the Heller decision was 5-4.   Swing vote, as often happens, was Kennedy.   I'd think it likely that if a case raising virtually the same issues comes before the Court again, he might well (especially if he reads some history in the interim) influenced by the tragic results of the current gun-rights regime, vote the other way.

If NRA members and other gun owners were actually forced to show up for drills, there would be a sea change in the status quo.