insane

It was just a toy example - here's a better one. Today, a woman in Saudi Arabi was sentenced by law, to 10 lashes for driving a car. It is sanctioned by law, is it then moral to lash a woman 10 times for driving a vehicle? Why can only a living being have rights? What gives you the right to say that? This is an obvious slippery slope (or reductio ad absurdum, your choice)... comparing a fetus to a pencil is a little ridiculous OK. Let's go with your premise - your belief that stealing is wrong is just a personal opinion. Why then, should I not steal? What gives your opinion the power to control, or assign consequences to, my actions? Let's say that the law is based on nothing more than a consensus opinion from a group of elected law-makers. What gives them the right to assign consequences to my actions, when I do not share their personal beliefs? IE. How can you condemn anyone for being against abortions, when it is just your personal belief against theirs? If you truly believe that a pro-choice stance is the only "right" stance, then you must believe that pro-choice being "right" comes from something greater than the collective opinions of the human race. If, (as was alluded to by another poster), you're a moral relativist and think personal beliefs determine morality, then you really have no business telling any pro-lifer to stop attacking abortion clinics because they just have different beliefs (nothing more).

Cheating on your spouse is not wrong in the eyes of the law. Would you say that cheating on your spouse is not an immoral action? And what gives the "law" the authority to define the rights available to a fetus? We don't know what God expects in situations like that. Many Christians claim to know, but the beliefs of many Christians are not biblical and founded on old traditions that have no basis in theology, etc. Additionally, whether or not you agree with a god's moral standing is irrelevant to the existence of said God. Actually, the fact that you believe that any specific action can have a moral index assigned to it goes to show you believe in some sort of higher power.