the 19th ward alderwomen here in Chicago wants to ban pitbulls. I hear in Australia it is illegal to clip a pitbulls ears so they are short.
I've known supersweet pitbulls that were just teddy bears, and I have also known mean ones. My sister has dobermans that would rip you apart if they do not know you, but once they are introduced, they are the sweetest animals.
If you train a dog (or any animal including human) to fight and kill, you are breeding a very natural, very violent, very strong survival urge.
Frankly, I think people who enjoy dog fights are just this side of killing squirrels and cats and then moving on to people. I know that's a bit strong, but I love dogs and really have no patience for people who don't. It should be a law that you should love dogs. Ok, that's a little too far.