As a millennial man, I don't think things are so bad. Separation among men is a problem but not a huge one. But perhaps if you were raised as a woman, it would be shocking because women in particular raise their guard around men. And even though women themselves know how they treat men, it would feel more real on the receiving end. It is of course possible that the person doesn't pass and people are raising their guard because you never know what queer people are going to get offended over. Lots of possibilities.