"..express personal political opinions..."

The Church has expressed rules on the moral order of men and women living out their lives in conformity to God’s will. Since God created life, He renders as the sole judge and authority when to take it back/away. From the Judeo-Christian rooted authority in the Ten Commandments, “Thou Shalt Not Kill.” All commandments referring to one’s neighbor (i.e. each person.) You could try to counter why God or His people attacked/killed certain persons. And that can be argued along the lines certain peoples in pagan worlds were doing all kinds of harmful acts (i.e. child sacrifice, sexual immorality, killing, etc.) And bolstered in God’s view a necessity to fight a moral wrong. But, that aside (not to ignore it), the killing of an unborn human being is wrong, not a political statement. Merely trivializing abortion as politics (one for, or one against it) reduces the  both arguments for a woman's right to choose or the unborn right to life.