Saw this @ eatliver a few days ago, thought it was funny there and its funny here too.
The commenting at eatliver was more forgiving. I don't understand how people can get so bent out of shape over a silly parody. I love neatorama and will always come back even though i do not agree or care for every post. You guys get it right more often than not, in my opinion.

I wonder how much hate mail "the onion" gets?

While I agree that this site is probably not the place for overtly political statements, I have a hard time seeing this as such a statement. While it was attached to someone political, I'm fairly certain that the grand majority of people, despite their political beliefs, understand the original statement was ridiculous at best.
While I also didn't particularly enjoy all pregnancy being likened to drowning, you have to keep in mind it's satire - that's the point. If you don't get that, you probably shouldn't read A Modest Proposal.