I saw this video, and this one comment by David Kunkel really is superb!
I listened a bit and the language used indicates a deep-rooted animosity towards sedevacantists.
He frames the other side as enemies that attack, go after, etc.
All in all, not very charitable, and the obvious goal is to intimidate the faithful into disregarding these
absurd and
biased claims that the crazy sedes force onto the rite.
I suspect this man has been taught in the same way and hasn't even honestly read what Cekada and others say, and if he did, he did a very poor job in communicating that to the listeners.