Comparisons are odious. You can always find an example there which flatters the case her.
Is London becoming more violent, or not? And if so, what are the possible causes? The usual explanations refer to social factors like poor education, high unemployment, and feelings of "exclusion".
I'm happy to look at social factors. But maybe we're not looking at some of the most obvious. One is diversity. Another one is the high number of homes where the children do mnot have a father.
Obviously these last two are never discussed, are they?