"Then mudcatters who actually live in London, tell us....are you living in a war zone?"
That is a gross exaggeration on Trumps part. Violent crime is hitting the news headlines at the moment, as it happens compritively rarely, so when it does happen it is more likely to find its way into the news, whereas homicide in America is so much an everyday event that only massacres are considered newsworthy.
The issues, as far as I am concerned are:
(1) Carrying guns is illegal.
(2) Cuts in policing means that their is a lot less crime prevention and a lack of resources to follow up minor crime.
(3) We have had 8 years of government policy which, with the help of the rabid right-wing press has been marginalising and dividing societies - the same happened under Thatcher.
(4) 8 years of successive cuts to funding has meant that their is no funding for initiatves that bring about community cohension of which breakdown of law and order is a symptom.