Catholic2003:
If a bishop says “Abortion is wrong and must be stopped”, then that is a matter of faith and morals. But if a bishop says “the best way to stop abortion is to make it illegal”, that is not an issue of faith and morals, that is the bishop’s legislative analysis on the best way to achieve the end of stopping abortion. So someone who disagrees with the bishop on the criminalization of abortion, e.g. John Kerry, is still a faithful Catholic. And certainly there is no problem in voting for political candidates who want to stop abortion though means other than criminalizing it. (Wasn’t that a Democrat campaign slogan, “make abortion safe, legal, and rare”?)
Strictly speaking, if a bishop says “The best way to stop abortion is to outlaw abortion completely”, then yes, the bishop is making a claim in the field of sociology which he is not specially trained in, and hence his claim is not binding on his parishioners as it would be in a strictly faith-and-morals sense.
You cannot deny that it sometimes happens that outlawing something is not the best way to stop it. An example would be the growth of the outlawed Church in the early days. It is also true that there are other ways the law can discourage or stop something other than outlawing it. An example here would be the so-called sin tax on items like cigarettes and alcohol.
If I could show you, through some kind of university study, that imposing a $10,000 tax on each abortion which could not be covered by insurance would reduce the number of abortions in this country more than simply outlawing abortion altogether would, then you must agree that the tax approach would be better than the outlawing approach. In this case it would be appropriate to disregard the bishop’s opinion in sociological matters, while at the same time holding to his teaching in moral matters.
Now in this case, is there any reason why we should take the bishop’s opinion seriously, even though it is not (strictly speaking) binding? Yes, absolutely. One reason is that it is a given that we strongly agree with the bishop’s end goals – meaning he has our best interests at heart and we trust him because of it. Also, we trust that he has done the research and talked with the people who do know about sociology etc and that he is interpreting and repeating their opinions for us. A third reason is that unity is a good thing especially in a democracy – we all need to vote the same way, even if it may not necessarily be the absolutely best way, so that at least something will get done.
I don’t know enough about economics to know if the bishops are right or wrong. But I do know enough about the magisterium to know that this teaching is just as valid as the one that says that it is immoral to vote for pro-choice political candidates.
We need to deeply respect and seriously consider the opinions of the bishops in each case. The part of the CCC you quote allows for and requires the Magisterium to make judgments on such things as it sees fit. However the sort of judgments the CCC is talking about here are not binding on the consciences of the faithful if they are not strictly moral issues. I refer you to CCC 2039
“…As far as possible conscience should take account of the good of all, as expressed in the moral law, natural and revealed, and consequently in the law of the Church and in the authoritative teaching of the Magisterium on moral questions.”
Moral questions are questions like “Is abortion justified in any circumstances?” On these matters the bishops are authoritative. However technical questions involving law or sociology, as in “What is the best way to achieve a certain end?” are not moral questions, except to rule out evil ways to achieve a certain end. In non-moral issues we are bound to follow their wishes “as far as possible” but we are not obliged to do something which we firmly believe will cause more bad things than good, given our level of education and knowledge about a situation. For example if a bishop fancied himself an amateur lawyer and tried to advise a real lawyer on matters of law, the lawyer is bound to hear him out, but is not required to lay out his case in exactly the manner the bishop said he should.