You were arguing that if you ban one breed the shitty owners will move on to another one. My point was that that other breed will (probably) not be quite as dangerous as this one, so it's a net positive.
Okay, how many deaths are there due to Chihuahua? I will concede that it is perhaps biologically possible for them to bite off the finger of an infant, which could in theory be fatal, but the odds are pretty fucking slim.
It almost certainly is in the EU.