You have an interesting perspective, and I respect your opinion. However, I can only understand it IF you are speaking of knives intended for aggressive use or for personal defense. My knives do not exceed 3.5" in blade-length and are used for daily utilitarian tasks on a daily basis. I use a knife for cutting tape, opening boxes, kitchen uses, cutting sales tags from clothing, and so forth.
I've never had a intent or a need to use it for personal defense. For common protection of my own person, friends, or family members from those who would wish me harm, I carry a concealed handgun, just as our County Sheriff now recommends to citizens who have concealed carry permits.