My pit was a rescue and one of the best dogs I'd ever had though they are banned in the US in many cities because of irresponsible owners. I also grew up with dobes my whole life another amazing breed IMO so no I don't think breeds should be banned at all- but yes irresponsible owners should. I think anyone ever found guilty of fighting, beating, or other animal abuse should never be able to own another dog again- EVER. A lot of issues would be resolved with these highly feared breeds