My thinking exactly. Otherwise great read.
Yes, there's much of interest. I'd prefer to read more of Father Holzhauser himself and less of the author's commentary.
But, yes, that "auto-demolition" notion just gets parroted back without people actually thinking of what it means and that it's not compatible with Catholicism. At one point, Holzhauser says that Catholics will be attacked by their "co-religionists", where he basically acknowledges that these heretics masquerading as Catholics, outwardly pretending to be part of the Church, really are not. If the Church is infiltrated, it's more like parasites that have infested the Body of the Church, but the Church herself remains pure and unsullied, as taught over and over again by the popes.