Against my better judgment I decided that it was a good idea to explain liberal morality to those who do not understand it and want to know. Naturally this is from my perspective and I do not answer for all liberals, nor would I ever pretend to.
There is a very simple reason why some people do not understand liberal morality and that is because we rarely discuss our morality. Liberals do not have a need or a want to wear our religion or morality on our sleeves. We (of course when I say we I am referring to me, any liberals are free to correct me if they believe differently) believe that these things are private matters between ourselves and our god.
We make no attempts to legislate morality or base our careers on what we believe others moralties should be. It is perhaps that reason why you rarely see a Democrat or liberal getting into problems for not living up to the morality that they champion.
On the issue of abortion, despite what non-liberals want you to believe we are not necessarily in favor of the procedure itself. Abortion is a nasty thing but as much as we would like to see abortions completely go away we are also very realistic about it. The goal is to educate girls about the consequences not only of unprotected sex but of abortions as well. Rape, incest, and the health of the mother are completely different issues and should be regarded as such. There are very few people out there that are pro-abortion. We are pro-choice, we believe that if a woman has to have an abortion she should have the choice to do so. We do not believe that it is our right to tell a woman what she can and cannot do with her body. She has to live with the choices that she makes and her alone with her god. Calling people who are pro-choice baby-killers is a slippery slope. If people choose that path then that is something they will have to live with.
On gay marriage we believe that two people that want to get married should have that right to do so. It is not up to other people to judge those that love each other whether or not it is a good love or a sinful love. It simply is not. If you do not approve of gay marriage no one is demanding that you go to the wedding and sit through it.
On religious texts we believe that all are guides to how you should live your life and should not be taken literally. Most religious texts were written thousands of years ago and simply do not reflect on how life is today. It is important to remember that most of what we see in religious texts today was decided by men, not a god. The Bible for instance has an entire slew of books that were not included because the group of priests that were putting the Bible together decided that they had no relevance or in some cases contradicted other books already in the Bible.
One final not we do not judge people based on the way they live. Those of us that are religious fully believe that decisions a person makes in their personal life is between them and their god and not them and everyone else around them. We believe that it is pointless to tell someone else they are sinner based on our beliefs because in the end it is not up to us whether they are a sinner or not.
This is not meant to be a criticism of conservatives but it is meant to possibly answer questions that people may have about liberals and their morality.