Listened to the video of his "logic".
Not exactly a ground breaking, parading-shifting argument here. But I guess that's what is to be expected as he really was arguing with the weakest points of the pro-life side of the debate.
Addressing his "point" posted on the website.
“Many, many more hundreds of eggs are fertilized than become humans,” he says, because not all of those eggs will attach to a woman’s uterine wall and result in pregnancy. But if you’re going to hold that as a standard—that life begins at conception and any egg that’s fertilized has the same rights as an individual—well, “Whom do you sue? Whom do you throw in jail?”
Fertilized eggs that don't "attach"? That's just nature. We can't hate nature nor can we blame the egg as well as the woman's body for behaving as nature intends. The same way we don't blame the parents when there is a miscarriage. Or blame anyone when a person dies of natural causes. Not exactly a stellar point there.