Father Stephen Torraco explains:
"If a political candidate supported abortion, or any other moral evil, such as assisted suicide and euthanasia, for that matter, it would not be morally permissible for you to vote for that person. This is because, in voting for such a person, you would become an accomplice in the moral evil at issue.
For this reason, moral evils such as abortion, euthanasia and assisted suicide are examples of a 'disqualifying issue.' A disqualifying issue is one which is of such gravity and importance that it allows for no political maneuvering. It is an issue that strikes at the heart of the human person and is non-negotiable. A disqualifying issue is one of such enormity that by itself renders a candidate for office unacceptable regardless of his position on other matters. You must sacrifice your feelings on other issues because you know that you cannot participate in any way in an approval of a violent and evil violation of basic human rights.
A candidate for office who supports abortion rights or any other moral evil has disqualified himself as a person that you can vote for. You do not have to vote for a person because he is pro-life. But you may not vote for any candidate who supports abortion rights. Key to understanding the point above about "disqualifying issues" is the distinction between policy and moral principle. On the one hand, there can be a legitimate variety of approaches to accomplishing a morally acceptable goal. For example, in a society’s effort to distribute the goods of health care to its citizens, there can be legitimate disagreement among citizens and political candidates alike as to whether this or that health care plan would most effectively accomplish society’s goal. In the pursuit of the best possible policy or strategy, technical as distinct (although not separate) from moral reason is operative. Technical reason is the kind of reasoning involved in arriving at the most efficient or effective result. On the other hand, no policy or strategy that is opposed to the moral principles of the natural law is morally acceptable. Thus, technical reason should always be subordinate to and normed by moral reason, the kind of reasoning that is the activity of conscience and that is based on the natural moral law."
This point is understood by authentic Catholics. Unfortunately, thanks to priest-idiots such as the clown cited here, some who pretend to be Catholic continue to justify their vote for pro-abortion candidates such as Joe Biden and Kamala Harris.
The teaching of Christ's Church has always been crystal clear to practicing Catholics with a modicum of intelligence:
"It is true that it is not the task of the law to choose between points of view or to impose one rather than another. But the life of the child takes precedence over all opinions. One cannot invoke freedom of thought to destroy this life...
The role of law is not to record what is done, but to help in promoting improvement. It is at all times the task of the State to preserve each person's rights and to protect the weakest. In order to do so the State will have to right many wrongs. The law is not obliged to sanction everything, but it cannot act contrary to a law which is deeper and more majestic than any human law: the natural law engraved in men's hearts by the Creator as a norm which reason clarifies and strives to formulate properly, and which one must always struggle to understand better, but which it is always wrong to contradict. Human law can abstain from punishment, but it cannot declare to be right what would be opposed to the natural law, for this opposition suffices to give the assurance that a law is not a law at all...
It must in any case be clearly understood that whatever may be laid down by civil law in this matter, man can never obey a law which is in itself immoral, and such is the case of a law which would admit in principle the liceity of abortion. Nor can he take part in a propaganda campaign in favor of such a law, or vote for it. Moreover, he may not collaborate in its application.
Congregation for the Doctrine of the Faith, Declaration on Procured Abortion, November 18, 1974, nos. 19-22
