Supposedly governments exist to serve their people; to enhance the well-being of their communities; to make things better - not worse.
If it becomes apparent to an ordinary, upstanding citizen that certain actions or policies of a government are in fact unethical, making something worse, doing a wrong, or infringing on rights or freedoms, etc. whether intentionally, accidentally, negligent, corrupt, malicious, or even in good faith..
And that citizen feels it's his duty (to himself, to others, or both) to do something about it; to change some law or policy (whether big or small, old or new) for the betterment of his society, or simply because he feels it's fundamentally the good and right thing to do..
What can he do to instigate this kind of change?