Do I hate all men now? Do I blame the male gender? Not at all! You can't put the blame on a whole gender based on one person's choices.
I'm sure there are men out there who are willing to wait for your friend to be ready to have sex, but there are women out there who won't make men wait and they still have trouble finding a partner!
I think more responsibility needs to be put on the actual person, and not on their gender.