I'm a mum and I love my kids more than anything... but I still agree with Johnny here
A man who didn't want to be a dad became a dad, and now he's doing the best he can in the situation.
Personally, I think his wife should have greater custody (I agree with him helping her pay a nanny for when she can't be with her kids) because it's obvious he doesn't appreciate his time with them, and would probably appreciate them more if he saw them less.
Yes, maybe he should have had a vasectomy... especially after child #1. At that point, he could have opted to leave his marriage paving the way for his ex to find someone who wanted to have more babies with her... but instead he had another...
Anyhow, he did at least seem CONFLICTED about his ambivalence for fatherhood.
Ultimately, it's a story of a couple who should never have been together in the first place. If you don't want kids, don't marry someone who does
Sometimes "mistakes" happen