Here’s an update to a comment I posted in Lex’s Gay Marriage post where I noted that Liberals don’t reproduce as much as Conservatives.
Drudge has a link to this article in the Wall Street Journal’s Opinionjournal that quantifies it to an extent:
“Abortion has caused missing Democrats–and missing liberals. For advocates so fundamentally committed to changing the face of conservative America, liberals have been remarkably blind to the fact that every day the abortions they advocate dramatically decrease their power to do so. Imagine the number of followers that their abortion policies eliminate who, over the next several decades, would have emerged as the new liberal thinkers, voters, adherents, fund-raisers and workers for their cause.”