Hmmm.... "maybe" the issue isn't their presence of their service in the military... its the logisitcal and legal nightmare of screening for authenticity, and then providing for separate accomodations for said minorities. In some forward deployed locations, its hard enough to provide proper accomodations. let alone accomodations for sexual minorities. and then how do you prevent intercourse in said accomodations?
.... and sodomy is punishable by the UCMJ and is defined as any form for sexual pleasure derived from any form of intercourse other than penile-vaginal sex. Which provides for other issues that would need worked out.
not taking a side, just pointing out a different side of the argument that should be taken into account by both sides.