Again, I ask what separates Lefebvre from Luther, Zwingli and Calvin?Let' see, did Luther reject dogmatic teachings of the Church? Did he reject any of the Sacraments? Did Calvin? Zwingli? Well, yes. They all did. And how many of the Sacraments or dogmas of the Church have the SSPX rejected? Oh, none? Maybe there is a difference?
Then there is hope. The various traditionalist Catholics (Mel Gibson's father's bunch e.g.) also do not reject dogmatic teachings of the Church, or so we think. I'm not so sure about that bunch...