homosexuals have the choice to serve and be celibate, or to have sex and not serve. Military service is a privilege, not a right.
They can also serve and NOT be celibate, and many do. If they live off-base the person could be their "roommate".
They just can't flaunt it, brag about it, demand approval for it, conduct parades, openly hustle others, etc.
And that's what they want.