“There are some very legitimate issues to be discussed regarding allowing openly gay servicemen. But, the fear that a significant number of gay guys would join in an attempt to get access to sex is fanciful. “
Exactly. How it would impact unit cohesion and morale is something that reasonable people can discuss. These fantasies about gay men signing up to get easy men, on the other hand, are laughable.
If you're looking for sex, you tend to go to places where the odds are good of finding someone likeminded. As a straight guy, I've never hung out in lesbian bars, since I knew my chances there were not good. I imagine a military setting would be equivalent for the average gay guy.