Part of the problem are the jerks these dogs are owned by. A big part. Those bred to fight and bite were bred that way because of the demand for such, and that's right back to the gangbangers and hoodrats who see such a dog as a status symbol. Almost any dog can be vicious with the right encouragement, at least insofar as they are capable. It isn't training the herding out of the border collie, or any other breed from dobies to rotties to pits, it's training the mean in that is the problem.
I (more than) tend to agree with you. However, I met a wonderful pit awhile back at the dog park. Nice owner. Ten minutes later, my two dogs were playing tug over an old scrap of a stuffed toy. The pit came running up, presumedly wanting to play. Quicker than I could see, he had my girl dog pinned down and she was squealing in pain/fear. I've broken up a number of dog
"fights" over the years, a simple matter of picking each up by the scruff, turning them away from each other, and waiting until things calm down. I put quotes around the word fights, because it's almost always a big show. In this case, when I went to lift the pit, he started throwing his head around in the neck breaking motion. I couldn't see at the time whether he had my dog by the neck or head, but this wasn't a "fight", he was trying to kill her. I ended up pining his head to the ground with my shoulder so that he couldn't accomplish his mission.
My girl dog has never much cared for other dogs, and she doesn't like other dogs interrupting while she is playing with "her" dog. I spent a lot of time working with her in training on this. While it all happened so fast that I didn't see the trigger, I'll admit that she may have started it by growling or otherwise flipping the pit the bird. However, IMO, that does not excuse the pit taking it to the level of attempted murder.
The next time I saw that dog come in, I made haste to simply get out. Didn't make it. He came running up to us and stopped for a few seconds, but it was clear what was coming. He attacked, completely unprovoked this time. My dog ended up with a couple of 1" deep puncture wounds in her leg (one right into the knee -- ick). I'll probably never regain complete use of one of my fingers, though I'm glad the SOB didn't bite it off completely.
So, I agree, most of the problem is the people who raise them. But even when raised right, it seems to me that these dogs have an inbreed behaviour to kill instead of just "fight" when push comes to shove. And IMO, we should breed that behaviour out. I know if I ever see one particular dog again I'll do my part.