Create all-homosexual and all-lesbian units in the respective services and then measure their combat effectiveness and efficiency. Re-evaluate later.
That way they can serve and still leave everyone else alone.
Something like this could have possibly worked in WW2’s style of war but no longer would be feasible. You have teams being deployed on missions that consist of members from multiple forces such as the Army Navy and Air Force, on the ground in combat operations.
Having been combat arms, I have concerns of divived loyalty.
Is priority one the boyfriend or following orders lawful ,but dangerous orders?
Can one tell their boyfriend to go walk point on patrol at night in a known Taliban stronghold ?