No, most well adjusted straight men don't think that gays can't control their libido and are trying to buttfug everything that walks by.
I don't think a straight man wants to shower in front of a gay man unless he isn't really straight and is curious himself and will be flattered by the notion. Plus any gay man that gets upset with a man kissing a woman is only repulsed by the actions that brought him to exist. That would be like him being pissed at his parents for having sex and conceiving him. That is just a stupid ass point, go back to the drawing board with that dumb poo.
Just like when I go to the beach I don't walk around with a constant boner and try to leg hump every girl.I see in a bikini.