I didn't even bother reading the whole thing. IMO it depends on the couple I believe if a Man can't handle seeing his wife bring his child into the worlds & up runs away never to return then something was wrong with that relationship long before the birth. Same goes for relationships that die after the birth. I don't understand how something so wonderful can bring a relationship to an end.
My DH was very supportive & I didn't hinder my birth(s) at all.

I don't believe a man should be forced to be there, but he should have the balls to say "I don't think I could handle it" rather then be there & be an un supportive mess