Why is sentience germane to aborting a human life in the womb?
It's not. Just as it is not when you are in a coma. He is just bullsh*iting to have the last word. People like him don't know what life really is.
So basically knowing you're there or not?
When you are drunk and asleep, is your GPS still telling you where you are?
Do you have more of this kind of crap or is that it?
Can you produce the full list of what conditions an unborn human being must meet to satisfy people like you?