Those opposed to the pro-life movement think that their opponents have a nefarious motive for their activism: "they don't really care about babies. They just want power or control, or they just want to win."
In the following debate, the Hitch makes this explicit. Watch Bill Craig's response. Starts at 1:16:
Craig's response is right. The Hitch presumes that Christians don't have the intellectual resources to care for people in the present. All they have is a hope that the future, post-resurrection world will be better. All the Christian talk about life is really a veiled attempt to control others. Craig's response is the denial of this premise. He argues that we do indeed have the intellectual resources to care about people in the present. It is because people are made in the image of God that each person has intrinsic moral worth and comes with a set of inalienable rights. In other words, Christians have good reason to care for people in the present.