A SHTF knife is more a tool than a weapon. It will get plenty of use chopping, prying, and cutting material.
You pointed out interesting facts about knives as they relate to use as a weapon. It takes a very special mindset to be able to cut someone while looking them in the eye. Knife fights are also very brutal, bloody, and painful. It isn't the movies, you WILL get cut.
Opponents with knives? That's why we have Glocks.
