I can only apologise, I don’t have the source but it was most likely a magazine article around the time of the Yom Kippur War, such as: Interavia International Defense Review; Interconair Armies and Weapons; or Ian Allan Battle Magazine.
It’s become a moot point. It will take a president who is quietly intent on reversing these trends in the military and aside from Cruz, I don’t see anybody who would do that. Paul, Kasich & Rubio are likely personally not bothered at all by the feminized and homosexualized policies.
That was a long time ago. I’ve read the same points though many times and my own experience moving between all male and sex integrated units confirms it.