No, it was extreme. But if I'm going to be honest with myself, more than its extremeness, I probably disagree with the term's usage more for PR reasons. You never persuade others by making Nazi references (as shown a few posts above this), even if the analogy is apt. People have purged the possibility of a Holocaust analogy being applicable.
But I do agree that the number of abortions we perform in this country is morally revolting. And I think the marginalization of the fetus by calling it "cells" or "blobs" to the point where we don't even MENTION it in abortion arguments, e.g. "It's her body, her choice! [Missing: acknowledgement of the fetus's body and rights and choice.]" is one of the most successful pieces of negative propaganda of the current century thus far.
EDIT:
He got banned? Wow. First time I've seen a Godwin's law reference be banned. Well, there goes my company I was just saying I was so happy to have...
http://www.gallup.com/poll/162548/americans-misjudge-abortion-views.aspx
This shows not only that most Americans support restricting abortion, but also that most Americans incorrectly believe that the pro-choice viewpoint is more popular. Thus corroborating my assertion that much of the pro-choice rhetoric has been extremely effective propaganda in altering people's perceptions of the country's opinion, but has been less effective at altering their actual viewpoints.