You make an excellent point, having exceptions to abortion is ridiculous. However, this has nothing to do with the fact that hunting in all instances is moral. A better debate question would be whether you need an AK-47 to hunt deer.
I think he's saying that it's an odd standard to find killing a fetus reprehensible, while an animal is fine, because they are both more primitive forms of life. Or something like that.
It's not necessarily that it's a double standard. It's more that you don't question why you are so diametrically different on the two issues. You just take it for granted.