I mean crimes of passion would be the simplest example.

Some heirarchy is inherent in society. It can be as simple as a farmer making better cheese than their neighbor. Now they keep more and people who know it is better and like cheese are more willing to give more for it. Now the better cheese maker has more than his neighbor. That inequality is a base for hierarchy. There’s no human nature involved in generating that hierarchy besides better cheese and cheese lovers.

You keep talking about police as they are-that is a strawman I ain’t arguing for. In any society however, there remains a need for enforcement of those societal laws. Unjust laws/enforcement are not an argument against laws or enforcement entirely just that laws and enforcement should be made just.