The police do not exist to protect you, nor do they have a duty to do so. The police exist to keep civil society orderly - that may mean protecting people at times, but often times simply apprehending criminals post-crime is enough.
Put another way, no amount of police are going to prevent you from being murdered or having your wallet stolen, but more police will probably catch more murderers and thieves after their crime.
The police do not exist to protect you, nor do they have a duty to do so. The police exist to keep civil society orderly - that may mean protecting people at times, but often times simply apprehending criminals post-crime is enough.
Put another way, no amount of police are going to prevent you from being murdered or having your wallet stolen, but more police will probably catch more murderers and thieves after their crime.