I say: “How about the baby? Rape is terrible, but why kill an innocent baby? Does the baby get a say?”
He says: “Republicans are for rape!”
I say: “Well, you know, there are ‘children of rape’ in the world. Would you like to go to each of them and tell them they should have been killed?”
He just freezes, and stands there staring into space in a full brain-lock. Let's meet all the other objections first - then when ALL THEY HAVE LEFT is the "rape objection" - we'll mop the floor with them.
Excellent way to get your kid to think! Hopefully, the lessons you teach him aren’t wiped out when he goes back to his mother.
Although, sometimes, having a parent who is so leftist that there is no room for rational thought in their brains teaches the kids more about the left than they could ever learn through any amount of logical discussion.