And liberals say plenty of things that are established facts, are not.
Actually, I don't care about same-sex-whatever, so long as it stays private (don't ask, don't tell). As for abortion, yes, the Catechism says it is wrong, and I certainly agree, but my arguments for abortion being illegal are all secular. Yes, the Constitution does not mention religion, but that does not mean something cannot be made into law simply because it coincides with religious beliefs. If that were true, murder, rape, theft, arson, and a whole host of other crimes would be legal, since they are also considered immoral by most churches.