Destroy every one of them. I’ve read where some PB’s raised from a barely walking puppy wind up attacking their owner when grown.
A friend of mine raised a pit bull from a pup. As an adult, the dog was a friendly, goofy thing. A very nice dog.
Until the moment it snapped, and viciously attacked a UPS delivery guy.
So, yeah. You can’t fix DNA. The breed should be forced into extinction.