No, no! Airing your view is fine. I just disagree, I don't mean to push you from the conversation. I'm glad you shared, because now I know that some people really do just feel more comfortable with only same-bodied people around. Which is way more sensible in a lot of ways than the previous arguments I've heard.
I still believe it would be overcome by an upbringing in a culture that didn't place so much emphasis on gender segregation and shaming natural functions, but that's fine, we can just disagree on that if you think it's built-in.