My point has always been, let them. But they have to be able to pass the same rigors and tests as men. If they can't hack it, they can't do it. How would you like to be an injured 240lb man whose only hope of salvation is being carried out by a 145lb woman? And men are naturally going to be protective of women in combat situations. They need to be put in all female units.
Again, you're problem is gender related. There are plenty of men in the military who don't weight 145 pounds.
How would you like to be an injured 240lb lardball fatso man whose only hope of salvation is being carried our by a 145lb man?