linuxmemes

This is the real answer.

When you look at serious violent crime, defining that as robbery, battery, forcible rape, and murder, the rate of serious violent crime is similar in the US and UK (edit - and Australia!). The UK has largely removed firearms from the equation--which is easier, since they're an island, and didn't start with 600M firearms--and it has decreased the murder rate, but their overall violent crime rate is still quite high. Despite nominally having single payer health, the system has been intentionally broken by conservatives, and poverty is pretty significant. You see the same kind of sharp economic divides in the UK that you see in the US.

The predictable result is violence.

Murder isn't the problem, it's a symptom. It's like saying that the awful cough and shortness of breath is your problem, and then thinking that cough syrup (with codeine!, since that's the good shit that works!) is going to fix the underlying pneumonia.