Ruh-roh....

How can you tell a good breeder from a mere average breeder, or worse a for profit only backyard breeder?

One that actively focuses on their bloodlines and genetics, and breeds for temperament as much as looks.

Certain breeds were breed, often for centuries, for certain tasks.

I subscribe to a local CSA . They have a great peranese. Sweetest dog in the world - on open house days, kids will be hanging all over it - an aside from looking pained it would never do anything (and hasn't in over 10 years). But bring any animal - including another dog - into her territory and it's dead. They specifically warn people to NOT bring their animals with them to the farm. It's a working breed, and has been used by farmers for centuries to protect their farms. It's genetic, and it's part of the breeds temperament. Every try to keep a boarder collie from herding small animals or kids? I have friends with BC's and it's fun to watch them freak out while the kids are playing soccer

You can rationalize all you want - but if you have kids, or there are kids in your neighborhood and you own a pit bull, your an idiot. Probably going to piss some people off - oh well. There are reasonable risks in life, and there are unreasonable risks. There are too many breeds out there to have to "prove a point" by potentially mauling a child or someone else. The statistics and body of evidence simply aren't on your side. Do idiot owners who intently make their dogs anti-social worsen the situation? Sure - doesn't take rocket science to see that. But it's far from being the sole factor.