And what makes the opposite opinion relevant? Until it can be scientifically proven when and what makes a human being, all opinions on the matter are, well, subjective opinions.

What makes 24 weeks the magic number for abortions? What's the difference between 24 and 25 weeks, in terms of fetus development? Why draw the line there, and not at 24.5 weeks? Or 23 weeks?

The relevant and superior opinion you're holding is just an arbitrary number.