There is no paradox. The optimal amount of crime is non-zero. You must tolerate some crime in order to keep your humanity and dignity. Orwellian dystopias with omniscient surveillance can reduce crime to zero but you wouldn't want to live in one.

https://www.bitsaboutmoney.com/archive/optimal-amount-of-fra...

This is just something people need to accept no matter how angry they get about it. If they don't, they will be manipulated through their fears into trading away their freedom for a false sense of security.