The Church’s regard for human life and dignity
scborromeo.org/ccc/p3s2c2a5.htm
Regarding your question
catholic.com/tracts/the-inquisition
We may not agree with Aquinas, but he made this argument:
scripturecatholic.com/feature-articles/ACLA%20-%20death%20penalty.pdf
There are those *in the past *who have believed in the following manner
"St. Thomas Aquinas logically argues that heretics who kill the souls of men should suffer the same capital punishments as those who kill the bodies of men, since destroying the soul is much graver than destroying the body.
St. Thomas says:
“On their own side [heretics] there is the sin, whereby they deserve not only to be separated from the Church by excommunication, but also to be severed from the world by death.
For it is a much graver matter to corrupt the faith which quickens the soul, than to forge money, which supports temporal life. Wherefore, if forgers of money and other evil-doers are forthwith condemned to death by the secular authority, much more reason is there for heretics, as soon as they are convicted of heresy, to be not only excommunicated but even put to death” (ST, Pt II-II, Q 11,
This is not the position of the Church. As shown above in the Catechism, we Catholics have great respect for the dignity and preservation of human life. And it is we Catholics who most strenuously defend human life from the moment of conception