Antelopes are not native to North America, and we shouldn't be comparing our society's knife culture to the knife culture of the African and Eurasian regions of the world. You may well find that stealthy Kenyan runners armed with spear mounted knives could, in fact, feed their family on their hunting skills, but that's largely irrelevant to our society of pudgy pale people.
What we really need for those people is a knife that can be thrown with great speed and accuracy. One which can be easily handled and stored, is light weight and can throw one or more knives with little to no preparation. It would also be handy if these knives penetrated further than their own blade depth. While they could be reusable, it would probably be best if the device could be used multiple times, but the knives were considered disposable.
I don't know what the answer is, but until we can design such a device, I think that knives are here to stay. Hunters really have no other good alternative, and until there is one I don't think it's right to regulate them so tightly that a man can't feed his family of nine without resorting to government supplied venison and buffalo.