[after explaining why even qualified women should not be able to serve because men expect that women can't be qualified...]
I would argue that the presence of atheists in the military is vulnerable to that very same argument. Never mind the question of whether an atheist can feel any genuine loyalty to a Christian nation, given that he rejects the core principles on which our nation was built; never mind the unlikelihood that someone who denies an afterlife would sacrifice his own life for any reason, instead of cutting and running like John Kerry; never mind the fact that atheism correlates with all manner of other moral degeneracies - "[Those w]ho changed the truth of God into a lie, and worshipped and served the creature more than the Creator, who is blessed for ever. Amen. For this cause God gave them up unto vile affections [...] Being filled with all unrighteousness, fornication, wickedness, covetousness, maliciousness; full of envy, murder, debate, deceit, malignity; whisperers, backbiters, haters of God, despiteful, proud, boasters, inventors of evil things, disobedient to parents, without understanding, covenantbreakers, without natural affection, implacable, unmerciful..." (Romans 1:25-31) - and so speaks to the moral character of the soldier; the simple fact is that we are a Christian nation with a Christian army, and our soldiers' strength and willingness to sacrifice their lives for the good of the United States and their fellow soldiers comes, in large part, from their Christian faith. An atheist cannot, by definition, share in that faith or that culture; he cannot pray with his troops or empathize with their worries and inmost beliefs; and how can a Christian soldier trust his life to someone who, the Bible makes clear, is hated by God and condemned to Hell? How can a Christian trust the leadership of someone who refuses to be led by God?