K.W.
I have also personally dealt with this. Surprisingly, the macho "no big deal" attitude is fear. Men are scared to death of babies... seriously! :D My husband was very minimal in his physical help (although he is very protective of our daughters: Katlyn 2½ years and Karyn 5 mos).
With both my girls, I was blessed with help from my mother in-law and sisters, so I had the support I needed without being too "needy" of my husband. It puts a lot of pressure on them and pushes them away even further. It took me being independent for him to feel comfortable in coming forward.
To some it may sound silly. Really think about it, though, for most men the reality of a baby "hits" when the baby is born ~ even if they are involved in the pregnancy. We on the other hand have 9 months to warm up to the baby, love the baby, have a relationship with the baby in a very intimate way that Dads lose out on. So it would only make sense that these Dads would need a little time themselves to get comfortable with the idea.
I know there isn't much suggestion here, but for me, understanding my husband was the greatest battle of all.
In addition, my firstborn, even with the little contact she had with him in the first months of her life, ADORES her Daddy and doesn't know the difference. He is very involved now and he is her hero. Most dads are. Hope this helps.