Not to nitpick or to diminish how the Church flourishes when we have secular leaders who stand for traditional values (at least some of those values), but being pro-life is not just a Catholic issue. Many people are pro-life, even to a heroic level (no exceptions for life of the mother, rape, incest, etc.), but wouldn’t set foot inside a Catholic church if you paid them to.
Some people are able to reconcile this truth with the prerogative of the state to take the life of a guilty adult, convicted of a capital crime, where no other solutions are possible.
It is the stance of the Church in this day, that it is virtually impossible for capital punishment to be licit. If the conditions of modern society no longer existed — let’s say, if there were a massive solar event that ruined the electric grid, destroyed all electronics, and threw us back to the 1700s, making modern transportation and communication impossible, and creating conditions where criminal elements could run wild in a “Mad Max”-style scenario — then I submit that the Church would have to concede that it is no longer possible to secure and attempt to rehabilitate all people convicted of capital crimes.