The campaign against the death penalty has been - while a powerful campaign, its participants have been those who attend all of the vigils, a relatively small number of people. ↗
Not all moral issues have the same moral weight as abortion and euthanasia. There may be legitimate diversity of opinion even among Catholics about waging war and applying the death penalty, but not... with regard to abortion and euthanasia. ↗
I will admit, like Socrates and Aristotle and Plato and some other philosophers, that there are instances where the death penalty would seem appropriate. ↗