I agree that we should expect better from the police and authorities in return, but also that we accept their use of limited force (even when not physically harmful) when necessary as the means to do so.
I personally lean towards presumably the same direction as you: that police should first and foremost be held to a higher standard before their legitimacy is accepted. However, I think it's not that far from the views of some that see their role in this conflict as imposing harsh law and order.