Robert Spencer responds to John Derbyshire's review of his new book Religion of Peace?—Why Christianity Is and Islam Isn’t :

John Derbyshire seems to think that since, in his view, Islam and Christianity are equally preposterous, they are equally likely to incite violence: “Mohammed’s flying through the air to Jerusalem on a white steed is no more preposterous than the doctrine of the Immaculate Conception; and so, God’s instructions to us through Mohammed are no more or less likely to make us better or worse than his instructions through Christ.”

Huh? “And so”? One thing is unbelievable, and so is another, and therefore they’re of equal moral value? Come now. I myself find National Socialism no more preposterous than Shakerism – does that mean that National Socialism is no more or less likely to make us better or worse than Shakerism? Does Derbyshire really want to get behind the idea that if something doesn’t ring true to him, it is therefore benign, or at least no more or less benign than some other farrago? I don’t think he does, even as he calls the whole exercise “infantile,” since he also says that he finds my “brief against Islam” to be “persuasive.”

Derbyshire’s review, while marvelously written and delightful to read, is full of inconsistencies. I don’t see how he could possibly find what I reveal about Islam to be “persuasive” if at the same time he thinks that Islamic and Christian doctrine are equally likely to inspire their adherents to commit acts of brutality, since the contrary assertion, as he himself notes, is a major point of my book. He also wonders whether “an equally learned Islamic scholar, bent on making the opposite case, might not produce equally persuasive points, to be then rebutted by Spencer, who would be re-rebutted by the Islamist…” I would welcome such a rebuttal, by the way, unless it were characterized by the torrents of abuse and sly deceptions and diversions that usually come to me from Islamic spokesmen in America, but the point is that while Derbyshire says he is persuaded, he evidently still suspects that I am just engaging in some kind of rhetorical sleight of hand....

The rest is here.