We literally cannot remove the police without a collapse of the state and consequently the rest of our civilization, and if you think for even one moment about how that would play out it would be apparent: everything fractures into private armies with no incentive to uphold democratic rule of law; the most powerful private armies become de facto states and their ruler a law unto himself--effectively a king. Obviously modern society can't survive under these conditions--no one can trust rule of law which absolutely underpins our economy. So congratulations, you've rediscovered the dark ages and doomed hundreds of millions to deaths from violence, illness, and starvation. :)