It is interesting that war is where this conversation is happening most. Let's change it, for just a minute.
Let's say there is a woman who is incredibly good at football. Should she be allowed to play college football on a men's team? Sure, she meets the physical requirements. She can block as well as anyone, can run just as fast, and is not afraid of injury. She can play the game, there's no question. And, at the end of the game, when they've won, she'll run into the locker room with all the guys, get naked and shower. Everyone's okay with that, right? One naked woman in a shower with 50 naked, horny, college age men. That's a good idea, isn't it?
I know these are not exact parallels, but there is a lot of intimacy and dependency in the arena of war. Indiscriminately throwing women into the mix because they can pass the physical tests is not carefully considering all of the consequences. Do I think women should be disallowed? No. Do I think they should have the same rights and abilities as men? Yes. Do I think we, as flawed, human beings are capable of acting in such a way as to make this immediately possible? Not a fucking chance. If women are going to be on the front lines, time to do some better work/education on preparing the male part of the armed forces on how to deal with that.