It is NOT my accusation--it is my observation. (See Job 9:22 for evidence--Job actually calls himself innocent--"blameless" in Job 9:21)
God could have prevented the killing of the righteous martyrs, but He did not. He did not contravene the will of wicked men to murder them. The wicked are storing up the wrath of God for what they have done. In the End, NO ONE will ever be able to say that God is unjust.
God allowing things to happen, and [as you said earlier] actually taking the life of the righteous are 2 different things.
As for Job, of course he would say he is righteous; He was righteous in Christ. He knew that he was declared righteous before God for the Savior's sake.