If you want to ban pitbulls, look at the others in the study about risk rates by breed. If you ban pitbulls they'll likely be replaced by some of these and they would need to be banned as well. Of course, in the name of the environment we could ban dog ownership altogether making this a moot discussion, right?

"Number of different breeds with similar risk rates for dog bite-related fatalities (DBRFs) including: Malamutes, Chow Chows, Saint Bernards, Huskies, Great Danes, Rottweilers, Doberman Pinschers, Mastiffs, Pitbull-Type dogs, Akitas, German Shepherds, and Bulldogs."

https://www.fataldogattacks.org/