You've been there. Someone holds up their adorable, darling child and says, gently, "Here is a reason to believe in God."
I think I've seen the same argument with porno and beer.
Rather than being a moment where we all sit down and forget our differences, and bask in the glow of a soft and innocent, lovely child, I see it as more christian bullying. It's a challenge. Dare you make any disparaging comment, like "actually, that's a reason to believe in sex?" If you say anything other than "congratulations, what a cute baby," you're a bastard.
The Alleee way of dealing with this is to hold up a similar child, only one from Vietnam whose mother was exposed to Agent Orange. "Is this a reason to believe in God, too?"
But now that I think of it, it is a reason. God hates Babies. Despises them. Is there even one baby besides the Christ Child that isn't killed or threatened or eaten? Seriously, someone find me one. The god of the bible simply has a taste for them. I woyuld have to say to the proud father: "Don't hold that up! You'll give Him ideas!" Seriously. Don't overfeed the tyke. Just look at the bible! Cutting babies in half. Slaughtering firstborns is evil for the king, yes. But when God does it, it's ok. Parents are forced to eat their own children for thought crimes, but when kids do wrong, they either get eaten by various animals, or killed by their parents. Why can't the kids eat their pets, at least? Parents are always making bad deals with god, and as a result, the children are killed. If you're looking at the bible for childraising hints--and I know you crazy monkeys are--you'll find that if you manage to carry a pregnancy without having a righteous Israelite sword rip through your belly, the only advice for Johnny is beat him, preferably with a rod, but mostly pelt him with stones.
I would have to advise that proud father to take out a restraining order on Jehovah, to keep him away from his Reason-To-Believe. Because, Jesus loves the little children--roasted, with a nice mustard sauce.
Thanks for listening.