If there was a rational argument for abortion, I'm pretty sure they would have attempted to articulate it by now. Why should they keep quiet about it? Instead they rely on arguments like, 'a feotus is not really human' (although they will never say to which species they think it belongs). Liberalism is an ignoble ideology of unworthy people. It rests on hypocrisy alone. (Most liberals claim they oppose the death penalty! )