Wait what? Burglaries are violent crimes. How is it protecting lives to allow violent crime to happen? We're not talking about shoplifting here.
The messaging was for the police to intervene less in non-violent crimes. I don't know of anyone that actually wanted the police to stop intervening in violent crime. Can you cite some non-fringe figure that asked for the police to stop intervening in violent crime?
Depends where you live. In the US robbery is a violent crime, but burglary is generally considered a non-violent property crime.