As someone who has raised and fostered dozens of dogs over the years, actual Pitbull breeds DO tend to have problems with aggression. I had one Pit rescue that absolutely loved people, dogs, and cats, and for a couple of years, it was one of the best dogs I had taken in. Until one day he wasn't, he snapped and almost killed another foster we had.

I have had about a dozen or so mixed bully breeds and breeds like American Bulldogs, and not a single one ever gave me a moments hesitation. There absolutely is something in the full blood Pit breed that is an issue. I honestly believe we could breed aggression out of the breed, but it would more than likely just need to end up a bully mutt breed instead.