I'm not sure if I agree with you on the fact that if you debate something using philosophy you are being unscientific. Of course philosophy and science don't always agree, but it's inaccurate to say that they're opposed or mutually exclusive. For instance, there are several philosophers who ground their views on scientific evidence, and there are even philosophers of science.
As far as abortion is concerned, it's perfectly possible to argue for the validity of the pro-life position with a merely scientific approach, in the case you were claiming the opposite, without the need to bring things like soul and free will on the table.
If I misquoted you it's been my mistake, and I apologize for that, but it seems that it was your turn to misquote me, judging by your last paragraph. I've never said that science doesn't deal with reality, far from it. But if you say that science deals with facts and philosophy with theories, you are wrong. Take cosmology, for instance. Isn't it science? Of course it is. And what do you have there? A huge amount of theories and speculations, many of them borrowed by philosophy or analyzed using philosophical reasoning.
I would simply say that you move from an idealistic perspective of science and a mischaracterized conception of philosophy