The point I'm making is, in order to make cities SAFE, because I think all but three large cities in the US have a crime rate higher than London's in the UK. (based on old research I did), you need to implement something that WORKS. Policing tactics that WORK, social policies that WORK.
In London they did this. Or I should say the left wing Labour Party did this
Analysis of the number of homicides in England and Wales since 1898, according to official figures from the Office for National Statistics
www.murdermap.co.uk
Labour got elected in 1997, implemented policies that saw murder hit a high in 2002/2003, and then drop by 50%. Then the right wing came in and then crime rose by nearly 50%.
There are ways of doing this, Labour didn't just go after crime, they went after the kids who get into crime, giving them better schooling, opportunities. The London Olympics was a huge part of that, they spent money on sports for kids. And the Tories got rid of it because they felt the money was better off in their own pockets.
Which is seemingly how the US works too. Especially under Trump.