Utter rubbish - Certainly, dogs can be dangerous; they frequently bite, very infrequently maim and only extremely rarely, kill people. Certainly, each death is a heart-rending tragedy. But it is nonetheless essential to maintain perspective and to consider the danger of dogs relative to other dangers.
XL Bully dogs have been killing people, do you think if the owner in Caerphilly had a chihuahua the young boy in Caerphilly would have died if it had bitten him?
It's like saying don't ban guns in the UK, teach people to use them responsibly, and get the drug gangs to go gun shooting classes on how to be a lovely citizen.