Euros have figured none of this out. They are controlled by their self-proclaimed superior Eurocrats and have been for hundreds of years. They have sold out their own populations and neutered them.We have crime because we have poverty, racism, untreated mental illness and addiction, and proliferation of guns.
We refuse to treat the underlying problems, THAT is supporting Crime.
The Europeans have figured this out, which is why they have nowhere near our crime rates.