Archbishop Lefebvre here concedes the major, that it is not possible that a Pope could preside over this magnitude of systematic destruction in the Church because he is protected by the Holy Spirit. He then speculates about possible "solutions" to this very real problem (a problem which R&R pretend doesn't exist), among them that the Pope is drugged/insane/blackmailed. He concedes that "it's possible" but makes a case against it. He also speculates that it could be that the man was excommunicated before being elected and therefore would not be a legitimate Pope. He does not dismiss this possibility at all. So R&R try to pretend that +Lefebvre was the great champion of R&R and great enemy of sedevacantism, but that's just a downright lie.
+Lefebvre was no R&R and +Lefebvre was no sedeplenist. He publicly entertained open doubts about the legitimacy of the V2 popes.