If I read the inital post correctly, it's becoming a public safety issue.

These dogs are poorly trained(if at all) and are not really under the control of the people who are walking them. A loud noise, a speeding car, or broken leash and the dog becomes a potential threat .

A few children will be bitten or worse by these dogs, unfortunately.
If the ghetto in UK is like over here, police and authorities are not enforcing the dog laws/ordinances.

Accidents waiting to happen.