Being pro-life is much more than just advocating for the banning of abortion in your state or country. Sure, that's a good place to start, but it's far from the end. Professing a pro-life belief includes feeding the hungry, housing the homelessness, creating peace where there is violence, and providing for the safety and welfare of each individual person, whether young, old, sick, incarcerated, unborn, or of a different tongue or creed. And being pro-life is not just praying for all those things (and more), but taking actions as well.
In this homily, the study Fr. John references can be found at www.guttmacher.org/article/2022/06/long-term.