If a democracy is to have any real meaning, it must respect the right of dissenters to resist the law in a non-violent manner,so long as the dissenters are willing to face thelegal conseqences. Else, in time of war or other crisis, a democracy can turn ad vicious as a tyranny. What is called the "positive law" that is, the body of laws promulgated by a specific government had no moral force unless it is grounded in the "natural". For instance, the law against the jews under hitler were inhunan perversions of the natual law, and deserved to be resisted, however legal they were. In such countries, civil disobedience was impossible the dissenters would have been summarily executed and therefore only revolutionary activily was effective. This is why only repressive governments have suffered revolution they left no other way out for disagreement.