Ummm...that's sort of simplistic, and I'm not even sure what your beef is about this. So what if a couple breaks up after their baby dies? Are the idiots who are foolishly grieving their spawn out shoving the corpse all up in your business? It just seems really mean spirited to lay the blame on all women when a couple breaks up after the death of their child, when I'm almost postive you've never been through it, and I know for a fact I haven't.
All sorts of awful events can help facilitate a break up, and relationships end for all sorts of stupid reasons as well. Sometimes awful events bring forth the underlying problems that were hidden in an already doomed relationship. If you think about it, many people like babies, and are really exicted when they're going to have one together. It's a big event for them, they might have actually planned for, wanted it, and probably love it just as much as we love our pets, From what I've seen, it sucks big royal donkey balls for both parents when the kid they wanted dies, I'd imagine that alot more that goes into the break up after that than "that bitch won't shut the fuck up about it". And like you said, men and women grieve differently. So it could just as easily be that the break up is just as much duh's fault for not having the patience to put up with the whining.
Then again, being child free and having made the choice to not experience this "wonderous, life changing experience" what the hell do either of us know about this? Probably not too much. It does suck to lose a pet, parent or friend, but those things suck in their own unique ways as well. That makes me guess that losing a child has it's own special suck to it which we won't ever have to expeirence.