It's the nature of sin to mutate. Macroevolution may only be true one place in the universe, but it's fundamentally correct as a description of sin's nature.
Alter one gene from God's pattern--say the gene that says that women are life-givers, carers, not warriors--and you end up having to accept sodomites in the military as well. A condition which is not sinful (femininity, womanhood) brought into a sinful context (combat, the armed forces) mandates the extension of such admission to that which IS inherently sinful.
General Pace's recent protest against openly homosexual soldiers comes unhinged at his lack of protest against women in combat. We may sympathize with him in his predicament and admire his forthrightness on homosexuality, but in the end he's little more courageous than those mainline "evangelicals" who permitted women into the pastoral ranks only to object to the subsequent admission of sodomites.
We've already seen the effects of this mutation in the church. Absolutely every argument made for the admission of women to pastoral ministry has been made for the extension of the pastoral call to homosexuals. The military can expect no less.
Oh, what a tangled web we weave....