I would amend gay "people" to gay "males". It is my unscientific observation as a current active duty Sailor in the USN that the overwhelming majority of gays serving today are female. I don't see gay men as finding the rigors of military service to be particularly attractive. Lesbians, on the other hand, tend to find the masculinity of military culture comfortable.
This whole debate over DADT has been centered around prancing, lisping "queens" turning our military into a haven for effeminate gay males while in reality, females are most affected by any policy regarding gays in the military. And while there are certainly gay males serving in the military, I know, I've served with some, there's a lot more lesbians.
I wonder if the strong opposition to gays in the military would be seen if all we were talking about was lesbians.
After all, there’s little chance that a lesbian is going to have sex with our military men; there was actually more “impact” I would think with a heterosexuai female in that regard.
Plus, it seems the offensive sex act which causes the most medical issues, is a male act.