And magically turning into pugs... the point was that labradors, german shepherds etc.. aren't magically radically different simply because they're in the UK vs the US.
I'd disagree with that, if you're aware of that then you'd surely see the relevance as the UK's pitbull ban only targets a specific subset of what is included under "pitbull" in the US:
en.wikipedia.org
So that includes bull terrier-type dogs that are allowed in the UK such as the staffie, the XL bully etc. and my point is that bull terrier type dogs are both disproportionately dangerous relative to other breeds and simply aren't necessary; dog fighting and bull baiting is illegal these days.