No reason to use the "retard" in this manner. Legitimately retarded persons deserve basic human respect.
The problem with DADT is that folks always know who has a girlfriend back home, a wife, a child. Do you wear a wedding ring? Carry a photo of your spouse in your wallet? There are a multitude of ways "normal" people communicate they're heterosexuality.
Are you "normal"? You seem to have a problem with "normal" but no problems with homosexual sex? Seems quite abnormal to me.
Let me assist you -Homosexual sex is abnormal. Log that into your mind...