I just tell you of things as they already are. Y'know, here in the communist, godless country I live in, where women have been allowed in combat positions for more than 20 years. I had no openly homosexual people in my squadron (as far as I know), but I have a friend who had several homosexuals in his unit, and that worked just fine. There's no point worrying about increased drama when you let in gay guys and women, since the gays are already there (only not openly, even though from what I've heard from former US soldiers, you often knew who was gay and you didn't give a shit) and the women have been in non-combat roles for many years, and thus already live on the same bases as the rest of them, so there's plenty of opportunity for sex for everyone already. But people don't follow some old medieval code of knightly conduct just because of the inclusion of possible romantic liaisons. Why? Because it's really, really stupid and contra-productive, and when the shit hits the fan for your latest homo-marine fling while you're having guard duty, you know that there's no damn thing you can do about it from where you are, so you put your hope in their professionalism to save them.

Of course, there will always be idiots being exceptions, but they're there already today, gays or women present or not.