It seems like everyone agrees the problem is some owners, not the dogs. But recognizing that is useless unless you have a way to FORCE people to change, and you can't. You can just control access to the kinds of dogs they're allowed to have. We can force them to keep their pets confined or to surrender them.
Can anyone here offer a better solution? A solution that doesn't depend on the wisdom of people who are specifically buying dogs advertised to "fight to the death"? Because you can't educate people out of their preferences in something like that.
Until you can offer a solution that is enforceable and likely to keep our cattle, house pets, and children safe, I don't understand how you can oppose laws which specifically address control of dogs (or tigers!) that threaten them.
1) Outlaw puppy mills and make it illegal for pet stores to sell puppies. Also regulate breeders so that only reputable breeders (that test the parents genetics, only choose parents that are healthy and have good temperaments, and socialize the puppies) are the ones breeding and backyard breeders are deterred from breeding.
This will force people to either adopt from shelters/rescues or buy from good breeders. These sources will take the dogs back if there are any problems, and will take the responsibility of euthanizing dogs that are vicious. BYBs and puppy mills don't take genetics into consideration either, so they are churning out dogs that are genetically predisposed to aggression for the sake of profit.
People who adopt from shelters or take the time to research breeds and breeders aren't going to be making impulse buys, and the shelters and breeders will ask these potential owners many questions about their lifestyles, etc to make sure that they are prepared for that particular dog.
2) Also, as I said in an earlier post, it should be illegal for people with a history of animal abuse or certain crimes (drug dealers, violent crimes, etc) to own pets and potentially dangerous animals like dogs in particular.
THIS is how I think this controversy should be managed. Breed specific legislation is not the answer. Someone could get a husky or a labrador and make it vicious if they didn't have access to pit bulls.