Police have no duty to protect was a Supreme Court decision. Castle Rock v. Gonzales (2005)
Jun 28, 2005 … Supreme Court rules that police do not have constitutional duty to protect a person from harm, even a woman who obtained court-issued protective order.
Well, we don't have a Constitutional duty to have public police departments and pay their salary through taxes either. If the police are going to be politicized, then it is time to hire private police who will do what is asked of them and what they're paid for.