Then quite honestly, you are ill informed.
First, you should note that a significant fraction of actual NRA members are also advocates for any number of "weapons for self defense," most notably the knife, but also including sticks and such.
Second, you have apparently completely missed the fact that a fair number of NRA backed and/or NRA co-authored State bills, many of which have passed, have, in fact, broadened the language and definition of acceptable self-defense weapons. This is most notably true of various Concealed Carry laws, many of which now include knives, expanding batons, and various other of the otherwise "banned" instruments.
However, this effort is hampered by several circumstances. First, it is a State-by-State affair. In most cases, each individual State's laws must be addressed. Additionally, the NRA is first-and-foremost interested in specifically firearms rights. Their, quite understandable, primary goal is expanding firearms rights. If they can expand additional self-defense weapons along the way, that is good but secondary to their goal. Further, because that is secondary to their goal, often times NRA backed bills will have to choose between which advances they may make, easing of firearms restrictions or easing of non-firearms restrictions. This is a simple decision for the NRA. Finally, it is pretty common for NRA backed/co-authored bills to include eased restrictions on non-firearms self defense weapons after the highest priority goals have been achieved in earlier legislation.
Living in Ohio, myself, I've seen this slow progression and all of the mule-muffins that must be passed first before a reasonable CC law is achieved. Here in Ohio, for instance, the original CC law which passed included an insane requirement that the firearm being CCed must be exposed and plainly visible when the person was driving a car. <boggle> This was allegedly added in order to keep LEO's "safe" during a traffic stop, but everyone knows the real reason was just to make one more difficulty, one more hoop to jump through which might discourage people from CCing. We in the Ohio firearms for self-defense community accepted that we would have to deal with this goofball restriction in order to get CC passed in the first place. No one of us liked it. It took around 2 years, ims, to finally get just that part "fixed." And we still have a long way to go. I'd love to have expanding batons, bowie knives, slungshot, brass knuckles, gravity knives, and all of the other stuff currently outlawed in Ohio code added to the list, but we just aren't there yet.
Of course the desired end point is "constitutional carry" for all self defense weapons, but geez, it's been an upward battle just to get this far. And your complaint seems to be, "you guys ain't do'n it fast enough to suit me!"???
Well, gee willikers, friend. Join or start and advocacy group yourself. While I'm not familiar with any "Nunchuka Advocacy Group" I do know of one or two knife advocacy groups.
Peace favor your sword,
Kirk
