There are valid religious (which for some folks is the only source of and reason for morality) objections to abortion. I personally believe they are totally wrong-headed, but other folks' religions must be respected, regardless how ridiculous they are. Its like forcing women to wear a headscarf in public because Allah requires it. It is not right to force a woman to display her hair if she objects to it for religious reasons. But neither is it right to force all women to cover themselves because your religion says so. If you are opposed to contraception or abortion, fine, you have every right not to practice them. But don't presume to foist your religion on anyone else. We are obliged to tolerate your tribal superstitions, not practice them.

I am an atheist, but when I go into a church, I take off my cap as a sign of respect. I don't need a god to teach me good manners.