CM is really a tortured soul and I am sad for him despite my (often violent) disagreements with him.
Your impression of him is that he is tortured? I think he is probably very prideful and doesn't question himself or his motives enough.
But I don't think he is as off-base as all that. I think the Popes from Leo XIII on are definitely weak, Pius X mostly excepted ( although Notre Charge Apostolique is a problem ). It wouldn't surprise me at all if we haven't had a Pope since Pius X. Rampolla was almost elected around that time... It is not as far-fetched as you are trying to make it sound.
The Church was CRAWLING with Freemasons in the early 20th century, and the language of Benedict XV really does sound Freemasonic. Do you think there might be some significance to Ratzinger's choice of the moniker "Benedict XVI"? Even Leo XIII with his talk of "brotherly love" sounds suspicious. This all happened through gradualism -- who knows when it really began?
It's good that CM is pointing some of this out, and opening doors where others fear to tread. The only problem is that he sees heresies where there aren't any.