The vast majority of people who join the police do so because they want to make society safe for its citizens. They are good people who are being used and lied to. They too are the victims of government deception, rules and regulations. If you find yourself arrested and bent over while a homosexual psychopath is fingering your back passage on the off chance you might have a knife up there just remember, the humiliation tactic and the guy who thinks its a decent way to earn a living are there because the government put them there. The government wants you to hate the police because it wants to force the police to defend their "democracy" right up to the moment they intend to discard it and have those same police men and women savaged by a communist mob.
We are a long way from the friendly bobby of the 1950's who everyone knew and respected. That's because "progress" is revolutionary and requires increasing levels of oppression until it finally collapses. Without the subversion the immigration and lies the only real difference in policing today would be provided by scientific and technological advancements.
Under Nationalism the police force would exist to serve it's citizens not its politicians. There would be more police with much less paperwork and they would again be the reassuring presence they used to be.