I want to second this thought. I always imagined myself to be very open-minded and inclusive of all people.
I believe very strongly in gay rights and that homosexuality is as normal and natural as heterosexuality.
This movie, however, truly made me face who I am. The first tent scene made me very uncomfortable, as did the second tent scene. I have come to think this is because I do not often see 2 men kissing or being intimate. Not nearly as many times as I have seen a man and woman. However, on subsequent viewings, the intimate scenes with Ennis and Jack quickly became my favorites, with the reunion hug and kiss outside the apartment my absolute favorite.
This movie really opened my eyes to the idea that (of course!) 2 men can meet, start a friendship, fall in love, become intimate, love passionately and that it feels exactly right to them. As right as my husband feels to me.
I guess I believed the concept in theory, but now I hold it in my heart.