Gender and sexual orientation are two diffremt things.
So, either you have gay "guys" in the boys bathroom or straight "guys" in the boys bathroom.
We already know how much some of you get about TEH GAYZ seeing you nekkid, so that's already all been said.
And if they are "straight guys", how does that translate to a potential sexual offence? If they want to see nekkid people who light their little fires, they'd just stick to the girls bathroom.