Where are all the young women screaming that this is not right?
Their silence is deafening.
Sorry, but I can't see what the big beef is.
Some women have served close to combat for decades, many have been casualties even when not right on the forward edge of the battle area.
More important, women must volunteer, not only for the military, but also for combat jobs, and then must qualify by meeting all the requirements.
Those few who do will fall into the ancient tradition of the Greeks' Athena or the French Joan D'Arc:
If experience proves it to have been a mistake, adjustments will certainly be made.