Whether US police is a uniquely thuggish corrupt arm of the moneyed establishment or not, is a different question.
But the way you are phrasing it I think you are skirting with the idea of anarchy as a (non) system of governance so the primary question here is if you think there is a need for any rules at all.
And if there is, how are they agreed upon, adjudicated and enforced in societies larger than a village.