Well, I am afraid you don't get the new military and especially the Marine Corps.
But let me ask you since you were in the infantry and I suspect you were in combat, how often did you think about the person next to as far as their sexual preference or gender? If you did, I have to guess you weren't at risk of getting killed. You know that at this time there are many cis women training for Special Forces who have qualified above cis men for spots. You do know that there are many Transwomen who were (and probably are) in units like the Seals, Rangers, Special Operations Squadrons and probably your own beloved Raiders.In 2013 Leon Panetta removed the military's ban on women serving in combat, overturning the 1994 rule. Panetta's decision gave the military services until January 2016 to seek special exceptions if they believed any positions must remain closed to women. The services had until May 2013 to draw up a plan for opening all units to women and until the end of 2015 to actually implement it.[24][25] In 2015 Joseph Dunford, the commandant of the Marine Corps, recommended that women be excluded from competing for certain front-line combat jobs.[26] That year a U.S. official confirmed that the Marine Corps had requested to keep some combat jobs open only to men.[27] However, in December 2015, Defense Secretary Ash Carter stated that starting in 2016 all combat jobs would open to women.[28] In March 2016, Ash Carter approved final plans from military service branches and the U.S. Special Operations Command to open all combat jobs to women, and authorized the military to begin integrating female combat soldiers "right away."
To paraphrase my DI "If you got time to think about getting laid, you ain't busy enough"