I'm not so sure I agree with that. In the absence of order, chaos reigns. I mean sure, if we remove religion it may stop both sides being bitterly entrenched but then it wouldn't be much of a debate with everyone being pro choice. There would be nothing left to discuss.Funnily enough, that particular notions comes from the idea that the "whole" of the person comes from the man's sperm. We still use the same terminology, actually. the man's "seed", the woman is "fertile", etc. They thought semen was literally human seed, and the woman's womb was the human soil in which it was grown. This way of thinking has shaped this entire debate. Remove the religious dogma, and you'd have a far more logical and moral kind of discussion.
Seems as though it would be logical to accept one's responsibility when you make a mistake and decide it's time to stop sleeping around, settle down and raise the life you helped bring into this world.
Then, in the event you aren't capable of providing for the child, there are many sterile yet loving people out there (who have the financial means) yearning for that child.