Coming from the pro-choice, anti-war position I held for a long, long time (though I’m still anti-Iraq war) I can only state that for me, **after **reading what the Church teaches on the matter, I came to the conclusion that my limited mind cannot begin to comprehend the complexity of the matter to such a degree that I could - with confidence - second guess the magesterium. Who am I to declare - through my actions - the Church’s wisdom on these matters to be wrong?
For me, they don’t need to be ex-cathedra, or infallable. It is enough that they were written for the faithful by the Pope after much prayer and with the guiding hand of the Holy Spirit. No, the voting statements aren’t doctrine, but they are supported by magesterial teaching which is infallible (faith and morals) and if you follow all the footnote references it’s evident that the teachings are based on Scripture and Tradition.
My husband likes to ask at random points in time “Who could beat up whom? Batman or Superman… the Aflack duck or the Geico gecko…” With that take, “Who could beat up whom - the sources behind Chruch teaching on voting, or the sources behind Secular teaching on voting…?” There is no argument - The Church sources whoop secular ones with the first punch. So even though I may not understand completely why I should vote pro-life over pro-choice when given the opportunity I can at least do so in good conscience because I trust the sources of the teaching which guides me to do so.