I have no problem with the weapon aspect of the show. Pretty much every tool we have now has a historical counterpart as a weapon or implement of war. Weapons evolved from need, and people have been using them on each other for eons. Too many people too close together for too long always triggers strife. To deny this is to deny what we are all about. Survival of the fittest. Intelligence over brute strength. Mother Nature saw fit not to give us claws, but the ability to make our own. Violence is the human condition. It used to serve an admirable purpose in nature, had a reason, that being one of population control, and promoted the strongest and smartest. It no longer serves that purpose, violence is now generally mindless and wasteful, and driven by urban decay. It has always been so. Weapons are a fact of nature, since the first primitive bashed some other primitive's head with a rock.
I like knives. I usually use general purpose knives, they can do many things. But I also have knives whose design and execution are single purpose. They are weapons, they're my claws. I appreciate them, and respect them for what they are. Examples of mankind's ability to improve on the works of others, elegantly simple, something sharp with a handle.