Not stepping into this to fight, but there is an interesting discussion here.
What raised my eyebrow about your comment is the "it's embarrassing" part. For me, and for many homosexual men (or men anywhere on the queer spectrum) there's nothing embarrassing or shameful about a man "acting like a woman." It reminds me of a lyric from a Madonna song (of course!) where she says:
"Girls can wear jeans and cut their hair short
Wear shirts and boots 'cause it's okay to be a boy
But for a boy to look like a girl is degrading
'Cause you think that being a girl is degrading"
We all have our hangups, but shaming other people for things that they are prideful of rarely seems like the right thing to do, imo.