If the SHTF... and able men are not in abundance to defend the homeland, they would all thank their lucky stars that we have brave, able and trained young women to step up and take to the fight.
LOL, is that girl logic? 313 million Americans and heading for a Billion, and suddenly America has to worry about running out of men?
In WWII our population was 132 million.
In the bloodiest war that the United States has ever fought, the Civil War, we had a population of 31 million.