Is Mica's Message Too Negative and Judgmental?

Mica's opponents seem to resist his message on the ground that it ill accords with the positive way that the lord treats his people within the covenant. Their opposition to micah is reminiscent of amaziah's confrontation with amos in amos, chapter seven, verse 16 - do not prophesy against israel and do not preach against the house of isaac. Michael proceeds to speak directly to some of the sins that the false prophets were papering over The situation described is likely one of oppression through vicious use of the law. But the villains are described like bandits and enemy warriors, viciously despoiling a vulnerable people under the rubric of 8th and 9th commandments