"If atheists truly believed in science, logic and reason, they would be overwhelmingly pro-life. There is nothing science, logic or reason can offer to defend the abortion of a human being in the womb. Seeing as atheists are overwhelming pro-choice, it proves that it's not science, logic and reason that leads them to their beliefs, but rather their opposition to God and morality."
SO much wrong with this (and remember I believe in God).
To start with, morality does not depend on God. Again I pose the old question: is something moral because God commands it, or does God command it because it is moral? If you take the first (which you seem to do), then morality is the ultimate in relativistic morals. Morality depends on the whim of God. Saying "God is good" or "God is moral" does not help, because that is a tautology. How do we know God is good/moral? In order to say that, you have to have a good/moral standard
outside of God to compare Him to!
So morality is independent of God. Which makes sense. God is rational, therefore He would have rational reasons for telling us what is morality. Anyone, atheists included, can figure out those reasons.
Second, abortion is an issue of ethics/morality. Science is NOT an ethical system. Therefore, science cannot decide that ethical issue. More on that later.
Third, logically, it is not enough for your argument that science does not "defend abortion" (even if that were true), but science would have to have evidence to
forbid abortion. You never provided that.
Now, the only "scientific" argument I can think of that Stripe is considering is "human life begins at conception". Which, scientifically, would mean that a fertilized ovum has the potential to develop into a baby. BUT, the discussion is not about biology, but about morality. When we say "human life", we mean the term in the
ethical, legal sense, not the biological. And science is not an ethical, legal system. Remember, we execute adult humans. They are most definitely "human" in the biological sense, but we decide they are not human in the ethical, legal sense and it is morally acceptable to execute them.
Fourth, let's look at the biology a moment. Fully 75% of fertilized ova NEVER produce a baby. Either the ovum does not implant, and is aborted at the first menstrual period, or suffers various developmental problems along the way and is aborted later. In either case, abortion is a biological process that happens to most "humans". If you believe God specially created humans in their present form, then the inescapable conclusion is that God is an abortionist! Otherwise, He would have designed a system whereby there were no abortions after fertilization. So, if God approves of abortion, then it must be moral. By your own criteria of morality, Stripe.
Now, another part of biology: the embryo is completely dependent upon the mother. It's literally a part of her and cannot survive on its own. Just like any other body part cannot survive on its own. In any other case, we have no moral objection to people cutting off and discarding parts of their bodies. Ever cut off a callus? A mole? Have a tooth pulled? How about radical mastectomy in the case of high breast cancer risk? Any moral problem with having both breasts removed? So, logically, a fetus is no different: it's a part of the body that can be discarded for medical or other reasons.
Now, once the fetus is born and is a baby, no longer a part of another person's body, then it is the logical to consider it a "human being" in the ethical, legal sense and protect it like we would any other "person". But not before.