When you don't have the facts on your side -- or the law, I was taught in law school -- shout louder. This is all Mr. Hitchens is doing.
Odd, isn't it, that all of the suffragettes were Christians? Equally odd, the Christian Bible denounced slave traders at a time when the slave trade was in fashion. Christians in the Roman Empire worked to abolish slavery and gave rights to women. Papal bulls forbad slavery among the Spanish conquerors in the western hemisphere, and William Wilberforce, an outspoken Christian activist, valiantly led the battle for abolition of the slave trade in England.
I would suggest that Mr. Hitchens read a good book: professor of sociology Rodney Starks' The Victory of Reason. It might embarrass Mr. Hitchens in his ranting and raving, but probably not.