Another thing...if you're right, and you save millions of babies from being aborted, because you've had their parents imprisoned or executed, then how do you propose they are provided for? It's going to require a level of social safety net that's hard to fathom.
Of course, personally as a liberal I think we can improve our social safety net and reduce abortions while allowing parents to be there to care for and provide for their kids. How do you propose to do it in your scenario? Are you willing to adopt and raise these motherless children and see your taxes go up to make sure they ate all well fed and educated?