Sorry, I meant invincible ignorance
Invincible ignorance…
So far as fixing human responsibility, the most important division of ignorance is that designated by the terms invincible and vincible. Ignorance is said to be invincible when a person is unable to rid himself of it notwithstanding the employment of moral diligence, that is, such as under the circumstances is, morally speaking, possible and obligatory. This manifestly includes the states of inadvertence, forgetfulness, etc. Such ignorance is obviously involuntary and therefore not imputable. On the other hand, ignorance is termed vincible if it can be dispelled by the use of “moral diligence”. This certainly does not mean all possible effort; otherwise, asBallerini naively says, we should have to have recourse to the pope in every instance. We may say, however, that the diligence requisite must be commensurate with the importance of the affair in hand, and with the capacity of the agent, in a word such as a really sensible and prudent person would use under the circumstances. Furthermore, it must be remembered that the obligation mentioned above is to be interpreted strictly and exclusively as the duty incumbent on a man to do something, the precise object of which is the acquisition of the needed knowledge. In other words the mere fact that one is bound by some extrinsic title to do something the performance of which would have actually, though not necessarily, given the required information, is negligible. When ignorance is deliberately aimed at and fostered, it is said to be affected, not because it is pretended, but rather because it is sought for by the agent so that he may not have to relinquish his purpose.
Ignorance which practically no effort is made to dispel is termed crass or supine.
That dog won’t hunt in your case…
N-Cs who make the effort to oppose Catholic teaching, and in the process are confronted with the authentic teaching of the faith will very quickly pass out of ignorance.