Christians aren’t doing the abortions but they aren’t peacefully stopping them, either. ...And...could if they **really**really**really** wanted to do so.
If millions could show up to buy a chicken sandwich, they could also show up at their nearest abortion center, but enough aren’t.
True, but that isn’t really going to stop abortions, they will just go more underground or distant. Getting people saved stops the sin, just like homosexuality and other evils. That is the real final answer.