There is no ‘ad hominim’ attack. An ad homium attacks a characistic of the person that is irrelaven to the premise. For example, “Joe is a bad dresser, so he knows nothing of economics”
What I have done is attack the person’s authority.
Mr. Di Ruzza did claim that in a democracy, we are to give a supposed right to revenge to the State.
Where, in Catholic moral theology, does a right to revenge exist at all? Or that Catholic moral theology considers self defense to be a mode of revenge?
If you can show that Catholic theology there exists such a right, I will freely admit my error.
If a person is claiming expertice is the matter of moral theology, but makes such a clear mistake, what authority can we give to his claims.
This is no different than listening to a geologist discussing the nature of the Earth while making claims that it is flat. It demonstrates a faulty understanding of geology, so the speakers points become questionable at best.
Such argument are relavtive to the premise, namely the persons authority on the matter, so an attack on such is valid.