You should expand on the "Uncomfortable" part.
Like, people could refuse to enlist because they don't want to be associated with gays or because they realize that it's not comfortable to be jammed in a tiny ass shower with people who may be looking at them sexually. And, conversely, it should be noted in your "pro" argument that anyone who's ever actually been in the military can tell you that you don't have time to take a proper shower, let alone be concerned about how sexually attractive others may be.
Hope this helps a little, as I'd say you've got the major points pretty much covered.
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I will either evade death or die in the attempt.