Uhm, he's talking about the ones that try to stay hidden. Only MANIFEST heresy excludes from membership in the Church, and not secret heresy. But there's absolutely nothing hidden about the Modernism (and heresy) of the Vatican II popes. They're all out in the open now and have taken control of the Church's material power structures.
Whatever. The fact is, if they were not within the ranks, that means they've left the ranks, which means Catholics are back in charge, which means we would see the reversal or the beginnings of the destruction's reversal, not the continuation of destruction we see today.