We the people understand instinctively that society has a compelling interest in protecting life. One only has to look at an elderly person and then look at an infant, and the connection becomes painfully obvious. Without infants, there can be no elderly.
I have a brother-in-law who is an LA County firefighter. He is a professional hero. He saves lives for a living. However, he is also pro-abortion. Next time I see him I am going to ask him if he finds any conflict with those two completely different ways of thinking.