What does Thoreau think about violence and privilege in "Civil Disobedience"?

Thoreau's practice of non-violent non-cooperation is a fundamental example of the power of those who, apparently, are powerless according to societal structures.  As Gandhi and Dr. Martin Luther King demonstrated, those who are oppressed are as necessary to the smooth working of an unjust social system as are those who rule such a system. When the victims of such a system refuse to cooperate, they cease being victims and actually are in control--those with political power or privilege must react or respond to those who refuse to cooperate with the system.

So, those who refuse to pay a tax, those who boycott businesses, those who peacefully disobey put those who are the source of the injustice being protested into a defensive or reactive stance.  There is no basis for a violent reaction or response from those who have the political positions of power since the protesters have the practical power at that point.

Violence on the part of protesters justifies the use of violence from those in political positions of power. Political privilege abused constitutes a loss of that privilege as Jefferson noted in the "Declaration of Independence."  True, non-violent power rests in the hands of those who refuse to cooperate with an unjust system or to obey an unjust law.