Well, the legal definitions of "deadly" weapon are all out of whack when it comes to carrying knives. The way the law works now, a folding knife of legal dimensions is not considered a deadly weapon, but I assure you that I could easily kill someone — if I weren't fat and old and gimpy — with the perfectly legal folding Kershaw "Blur" I carry daily. If the law's perspective on knives were transferred to guns, you would be able to carry a .22 concealed without a license because it's not as "deadly" as a .45. Of course, that's a preposterous notion. Either can kill you, and for better or for worse, CHL law applies to all calibers if carried concealed. So there is definitely some inconsistency when it comes to what the law describes as "deadly."
I don't claim to know what the answer is, and frankly, unless carrying a pocket knife were outlawed, its not something I give a lot of thought to or care about that much.
I actually own one of these:
I don't even remember for sure where I got it, except that I
think I bought it at a gun show 20 years ago or so back in California. I
think. I truly don't remember for sure. I had forgotten I had it, but it somehow made the move with me to Texas, and I found it when I was going through some boxes just the other day. I put it back in the box and put it away. Given my physical condition, if I'm close enough to use this thing, I've already lost the fight. That's one of the primary reasons why I have a CHL and carry a gun.