No, you should talk with people, insist that your views are reasonable, and if indeed we interpret correctly the word of the Lord, the Holy Spirit will do His work in those people’s souls. By being quarrelsome and not engaging in dialogue with those people we shut down one of the three means of reverting the situation. The two others are, of course, prayer and example. Having a decent, coherent life that conveys the values of Catholicism is a powerful argument. It’s difficult but feasible. I had huge discussions on abortion with my agnostic/atheist friends and coworkers (there was a referendum in my country, Portugal, about the issue two years ago, which was lost, although with a low turnout). I learnt two things. First, my friends’ grasp of the philosophical questions involved was very weak, although they’re highly educated people. The second thing is that they understand most of our arguments and end up seeing your Catholic opinion as reasonable and well founded. Some of them might some day abstain in a new referendum or perhaps even vote against. Looking at your example and other Catholics’ examples may lead people to think “hey, these people are nice people and, although they defend tough things as banning legal abortion, they show comprehension, compassion, charity and do not judge the others.” For judging the others and ourselves, my friend, is God’s task, not ours. So I ask: how many of us try to live Catholic lives so that our examples may be seen as admirable by others? Too few, too little time. I am guilty of that, too.